This chapter discusses multimedia devices such as sound cards, digital cameras, and MP3 players. It covers optical storage technologies like CDs and DVDs and how they are used for storing multimedia data. The chapter also explains how CPUs process multimedia data and the technologies involved in sound recording and playback, digital imaging, video capture, and optical disc reading and writing.
The document discusses various multimedia file formats including RTF, TIFF, RIFF, MIDI, JPEG, AVI, MPEG, and EXIF. It provides details on the purpose and key features of each format such as how RTF is used to transfer formatted text between devices, how TIFF supports image tags, and how MIDI stores musical instrument data. The document also compares formats such as JPEG and GIF, and discusses advantages of MIDI and video file formats for delivering content over the internet.
This document discusses data storage formats for different types of multimedia files. It begins by explaining that sound, pictures, video, text and numbers are stored digitally in different formats. It then discusses various file formats for storing audio like MIDI, MP3, WAV and lossy/lossless compression techniques. For images, it covers JPEG, GIF and vector/bitmap formats. Video compression techniques like MPEG and MP4 are also summarized. The document concludes by covering text/number representation using ASCII and error detection methods like parity checks and checksums.
The document discusses multimedia and mass storage devices used with PCs, including sound cards, TV tuners, video capture cards, optical drives, and removable storage. It covers how these devices work, common interface types, installation and configuration, and basic troubleshooting. The objectives are to learn about these technologies, how to install and configure the devices, and troubleshoot any issues.
Sound is created by vibrations that travel through a medium like air as sound waves. It has two main characteristics - frequency determines pitch, and amplitude determines loudness. Digital audio involves sampling an analog sound wave into discrete numeric samples at a certain rate. MIDI data provides instructions for synthesizing music rather than storing actual sound samples. When adding audio to multimedia projects, the file format, playback capabilities, and intended function of the sound must be considered.
Multimedia data and information must be stored in a disk file using formats similar to image file formats. Multimedia formats, however, are much more complex than most other file formats because of the wide variety of data they must store. Such data includes text, image data, audio and video data, computer animations, and other forms of binary data, such as Musical Instrument Digital Interface (MIDI), control information, and graphical fonts. (See the "MIDI Standard" section later in this chapter.) Typical multimedia formats do not define new methods for storing these types of data. Instead, they offer the ability to store data in one or more existing data formats that are already in general use.
For example, a multimedia format may allow text to be stored as PostScript or Rich Text Format (RTF) data rather than in conventional ASCII plain-text format. Still-image bitmap data may be stored as BMP or TIFF files rather than as raw bitmaps. Similarly, audio, video, and animation data can be stored using industry-recognized formats specified as being supported by that multimedia file format.
Video combines pictures and sounds displayed over time by breaking a continuous event into individual frames. Video formats are made up of a container that specifies the file structure and codecs for compressing and encoding the audio and video data. Common video formats include AVI, QuickTime, and WMV, while codecs like MPEG and DivX are used to compress the files. Larger video file sizes are needed for higher quality video with more frames per second, and file size affects the hardware requirements for storing and playing back video.
The document provides information about video and image formats. It discusses key concepts like codecs, which are algorithms that compress data for storage and transmission. Popular video codec standards include MPEG, H.264, and WMV. Video compression works by comparing pixels between frames and only sending differences. Popular image formats discussed include JPEG for photos, GIF for web graphics with few colors, and PNG as a replacement for GIF that supports more colors losslessly. The document compares characteristics of different file formats.
The document discusses various multimedia file formats including RTF, TIFF, RIFF, MIDI, JPEG, AVI, MPEG, and EXIF. It provides details on the purpose and key features of each format such as how RTF is used to transfer formatted text between devices, how TIFF supports image tags, and how MIDI stores musical instrument data. The document also compares formats such as JPEG and GIF, and discusses advantages of MIDI and video file formats for delivering content over the internet.
This document discusses data storage formats for different types of multimedia files. It begins by explaining that sound, pictures, video, text and numbers are stored digitally in different formats. It then discusses various file formats for storing audio like MIDI, MP3, WAV and lossy/lossless compression techniques. For images, it covers JPEG, GIF and vector/bitmap formats. Video compression techniques like MPEG and MP4 are also summarized. The document concludes by covering text/number representation using ASCII and error detection methods like parity checks and checksums.
The document discusses multimedia and mass storage devices used with PCs, including sound cards, TV tuners, video capture cards, optical drives, and removable storage. It covers how these devices work, common interface types, installation and configuration, and basic troubleshooting. The objectives are to learn about these technologies, how to install and configure the devices, and troubleshoot any issues.
Sound is created by vibrations that travel through a medium like air as sound waves. It has two main characteristics - frequency determines pitch, and amplitude determines loudness. Digital audio involves sampling an analog sound wave into discrete numeric samples at a certain rate. MIDI data provides instructions for synthesizing music rather than storing actual sound samples. When adding audio to multimedia projects, the file format, playback capabilities, and intended function of the sound must be considered.
Multimedia data and information must be stored in a disk file using formats similar to image file formats. Multimedia formats, however, are much more complex than most other file formats because of the wide variety of data they must store. Such data includes text, image data, audio and video data, computer animations, and other forms of binary data, such as Musical Instrument Digital Interface (MIDI), control information, and graphical fonts. (See the "MIDI Standard" section later in this chapter.) Typical multimedia formats do not define new methods for storing these types of data. Instead, they offer the ability to store data in one or more existing data formats that are already in general use.
For example, a multimedia format may allow text to be stored as PostScript or Rich Text Format (RTF) data rather than in conventional ASCII plain-text format. Still-image bitmap data may be stored as BMP or TIFF files rather than as raw bitmaps. Similarly, audio, video, and animation data can be stored using industry-recognized formats specified as being supported by that multimedia file format.
Video combines pictures and sounds displayed over time by breaking a continuous event into individual frames. Video formats are made up of a container that specifies the file structure and codecs for compressing and encoding the audio and video data. Common video formats include AVI, QuickTime, and WMV, while codecs like MPEG and DivX are used to compress the files. Larger video file sizes are needed for higher quality video with more frames per second, and file size affects the hardware requirements for storing and playing back video.
The document provides information about video and image formats. It discusses key concepts like codecs, which are algorithms that compress data for storage and transmission. Popular video codec standards include MPEG, H.264, and WMV. Video compression works by comparing pixels between frames and only sending differences. Popular image formats discussed include JPEG for photos, GIF for web graphics with few colors, and PNG as a replacement for GIF that supports more colors losslessly. The document compares characteristics of different file formats.
This document discusses digital data and digitization. It begins by defining key elements of digital media like binary digits (bits) and how they are used to encode digital data. Common file formats and codes like ASCII and Unicode are described. The digitization process involves sampling analog data and converting it to digital code. Compression techniques can reduce file sizes, either with or without loss of quality. While digital media has advantages like easy reproduction and distribution, it also faces challenges such as large file sizes and concerns about long-term accessibility of data. Key terms involved in representing, encoding, and storing digital information are defined.
This document discusses different types of multimedia data and file formats. It describes text, graphics, images, audio, video, and animation. For images, it discusses bits per pixel and compression formats like JPEG, JPG, and BMP. It explains how audio is digitized and compressed, with lossy and lossless algorithms. Video involves sampling frames at rates like 30 fps and uses compression. Animation shows series of pictures displayed rapidly. Common file formats are described like RTF, TIFF, MIDI, JPEG, and MPEG, which is used for video compression standards.
The document discusses various file formats for different types of digital media. It describes audio, video, and image file formats. For audio formats, it discusses MP3, WAV, WMA, and Ogg formats. For video formats, it covers AVI, WMV, MOV, and MP4. For images, it summarizes JPG, TIF, GIF, and PNG formats. It provides details on each format such as how they are compressed, supported file extensions and applications, and strengths and limitations.
The document provides an overview of the Internet by defining it as a network of networks that connects computers worldwide and allows for communication through services like email, file transfers, and the World Wide Web. It then gives a brief history of the ARPANET project in the late 1960s and early 1970s that paved the way for the Internet. It also explains some key technical aspects like TCP/IP protocols, IP addresses, domain names, and DNS. Finally, it outlines several popular Internet services and applications.
An audio file format is a file format for storing digital audio data on a computer system. There are three main types of audio file formats: uncompressed, lossless compression, and lossy compression (like MP3 and AAC). Examples of common file extensions include .wav, .mp3, .m4a, and .ra.
Chapter 02 multimedia systems hardware and softwareUrvi Surat
This document discusses multimedia systems and authoring tools. It begins by categorizing multimedia systems as either multimedia presentation systems for users or multimedia development systems for developers. It then discusses the evolution of the multimedia PC from early systems with limited capabilities to later systems adhering to MPC specifications with improved processors, memory, and multimedia support. The document also covers various types of authoring tools classified by metaphor and capabilities, and the typical multimedia development process.
This document provides an overview of computer hardware components and concepts. It describes the basic components of a computer system including the system unit, CPU, memory, storage, and peripheral devices. It discusses different types of computer systems and platforms. The document also covers hardware basics such as motherboards, buses, caches and processors. Finally, it discusses computer networks, storage technologies, input devices and output devices.
This document discusses digital audio and summarizes key points:
1. Digital audio involves converting sound waves to numerical data that can be easily stored, manipulated and reproduced. It allows for two types of sounds - analog and digital.
2. Characteristics of digital audio include sampling rate, amplitude, channels. Common sampling rates are 11.025KHz, 22.5KHz and 44.1KHz. File size is calculated based on these characteristics.
3. Popular audio file formats include WAV, AIFF, MP3, AAC which allow for compression. MIDI stores musical data separately from audio and allows for editing of notes.
The document discusses several multimedia formats for audio and video, including ASF, ASX, WMA, WMV, MIDI, RealAudio, AU, AIFF, SND, WAVE, MP3, AVI, Windows Media, MPEG, QuickTime, RealVideo, and Shockwave. It provides brief descriptions of each format including what type of content they support and their typical file extensions.
CDs were originally able to store more data than computer hard drives but hard drives now far exceed CD capacity. By 2007, over 200 billion CDs had been sold worldwide, though sales have declined as digital storage and distribution has increased. CD pros include not being able to crash and easy use, while cons are being scratchable and having a small storage capacity. MP3s use lossy compression to reduce file sizes but also reduce audio quality slightly. MP3 pros are small file sizes and wide compatibility, while the con is potential quality loss. WAV files are uncompressed and highest quality but also largest in size, with pros being quality and support, and cons being large file sizes and slow importing.
This document discusses various video and audio formats including MPEG-1, MPEG-2, MPEG-4, H.264, WMV, DivX, 3GP, ASF, AVI, EVO, MKV, MOV, MP4, MPG, NUT, OGG, RMVB, and VOB. It provides information on the standards organizations that developed these formats, the types of video and audio codecs they support, and what applications or devices commonly use certain formats.
This document discusses digital sound, including sampled and synthesized sound. It provides details on:
- How sampled sound works by digitally recording analog sound waves, with quality depending on sample resolution and rate.
- How synthesized sound uses MIDI to send commands to synthesizers to generate new sounds.
- The advantages of digital sound over analog, such as noise reduction, editing capabilities, and ease of distribution.
- Guidelines for using sound in multimedia, such as identifying its purpose, using high quality sound, and avoiding excessive use.
The document discusses MIDI (Musical Instrument Digital Interface), which allows musical instruments and devices to communicate. It describes MIDI's components like synthesizers, sequencers, tracks, channels, and messages. MIDI provides a low-bandwidth way to transmit musical data and sound effects over the web by moving sound production to the client. It can be used to synchronize devices and convey musical performance data for applications like multimedia, games, and karaoke.
The computer consists of both hardware and software. The key hardware components include the processor, motherboard, graphics card, sound card, network card, memory, disk drives, monitor, and peripherals like keyboards, mice, and printers. The processor performs calculations, the motherboard connects components, the graphics card handles display output, and memory temporarily stores active programs and data for processing. Disk drives provide permanent storage. Software includes operating systems and application programs.
1. The document discusses different audio file formats including uncompressed, lossless compressed, and lossy compressed formats.
2. Uncompressed formats like .wav and .aiff store audio with no loss of quality but have large file sizes, while lossy compressed formats like .mp3 reduce quality to greatly reduce file size through techniques like perceptual encoding.
3. Lossless compressed formats like .flac and .alac provide compression without any quality loss by eliminating redundant data, offering file size reduction of around 2:1 compared to uncompressed.
Hardware For Creating And Displaying Multimedia!Tom.B
This document discusses hardware for creating and displaying multimedia. It identifies video cameras, digital cameras, and microphones as input devices for capturing video, images, and sound, respectively. It then discusses screens, projection devices, and speakers as hardware for displaying captured media, with screens providing immediate feedback and projection devices projecting the computer screen onto a larger display. Head-up displays are also mentioned as devices for wearing and viewing virtual reality information. The document credits Thomas Boyes Production and the Information Processes and Technology HSC Course Book.
Digital video can be recorded and edited on a computer. It is stored using file formats like AVI, MOV, MPEG, and FLV which determine compatibility and file size. Digital video is composed of individual frames that have a rate, size, and color depth. Video editing software allows cutting, combining, and adding effects to video clips. Captured digital video can be used in multimedia products like presentations, websites, and games.
There are three main types of audio file formats: uncompressed, lossless compression, and lossy compression. Lossless compression preserves all audio quality while reducing file size, while lossy compression permanently removes some audio information to greatly reduce file size. Common audio formats include WAV (uncompressed), lossless WMA, MP3 and AAC (lossy), and MIDI (event-based musical instrument data). Audio is digitized through sampling, with higher sampling rates and more bits per sample providing better quality but larger file sizes. Formats like WAV and AIFF store uncompressed audio, while MP3 and WMA use lossy compression to reduce file sizes.
Sound formats are file formats for storing digital audio data on a computer. There are three main types: uncompressed formats like WAV and AIFF which maintain quality but have large file sizes, lossless compressed formats like FLAC which reduce file size without quality loss, and lossy compressed formats like MP3 and AAC which significantly reduce file size at the cost of some quality loss. Lossy formats are best for sharing and streaming audio online or on mobile devices due to their small file sizes.
The document discusses various file formats for different types of digital files. It begins by defining what a file format is and how it specifies how information is encoded for storage. It then provides examples of common image, audio, video, and text file formats. For each type of file, it lists some of the most popular specific formats like JPEG, PNG, MP3, WAV, AVI, DOC, HTML, and PDF. It provides brief descriptions of each format including what they are called, their file extensions, how they compress or store data, browser support, and common uses. The document serves to introduce and compare some of the most widely used file formats.
This document is a story by Meakin Armstrong about growing up in Kobe, Japan in the late 1960s as the child of an American consul-general. It describes witnessing protests outside the American compound on Christmas Eve in 1969, with protesters shouting and police beating back crowds. While this was happening, the author's father had the family sing Christmas carols inside to record for relatives as B-52 bombers flew overhead on their way to the Vietnam War. The story provides context about the author's father's role as consul-general and life inside the sterile American compound surrounded by a thick outer wall in Japan during a period of anti-American sentiment.
This document provides an overview of multimedia devices and mass storage technologies used with PCs. It discusses sound cards, digital cameras, MP3 players, and optical storage devices like CDs and DVDs. The document also covers topics like CPU technologies for multimedia, mass storage devices for backups, and troubleshooting multimedia and storage issues.
This document discusses digital data and digitization. It begins by defining key elements of digital media like binary digits (bits) and how they are used to encode digital data. Common file formats and codes like ASCII and Unicode are described. The digitization process involves sampling analog data and converting it to digital code. Compression techniques can reduce file sizes, either with or without loss of quality. While digital media has advantages like easy reproduction and distribution, it also faces challenges such as large file sizes and concerns about long-term accessibility of data. Key terms involved in representing, encoding, and storing digital information are defined.
This document discusses different types of multimedia data and file formats. It describes text, graphics, images, audio, video, and animation. For images, it discusses bits per pixel and compression formats like JPEG, JPG, and BMP. It explains how audio is digitized and compressed, with lossy and lossless algorithms. Video involves sampling frames at rates like 30 fps and uses compression. Animation shows series of pictures displayed rapidly. Common file formats are described like RTF, TIFF, MIDI, JPEG, and MPEG, which is used for video compression standards.
The document discusses various file formats for different types of digital media. It describes audio, video, and image file formats. For audio formats, it discusses MP3, WAV, WMA, and Ogg formats. For video formats, it covers AVI, WMV, MOV, and MP4. For images, it summarizes JPG, TIF, GIF, and PNG formats. It provides details on each format such as how they are compressed, supported file extensions and applications, and strengths and limitations.
The document provides an overview of the Internet by defining it as a network of networks that connects computers worldwide and allows for communication through services like email, file transfers, and the World Wide Web. It then gives a brief history of the ARPANET project in the late 1960s and early 1970s that paved the way for the Internet. It also explains some key technical aspects like TCP/IP protocols, IP addresses, domain names, and DNS. Finally, it outlines several popular Internet services and applications.
An audio file format is a file format for storing digital audio data on a computer system. There are three main types of audio file formats: uncompressed, lossless compression, and lossy compression (like MP3 and AAC). Examples of common file extensions include .wav, .mp3, .m4a, and .ra.
Chapter 02 multimedia systems hardware and softwareUrvi Surat
This document discusses multimedia systems and authoring tools. It begins by categorizing multimedia systems as either multimedia presentation systems for users or multimedia development systems for developers. It then discusses the evolution of the multimedia PC from early systems with limited capabilities to later systems adhering to MPC specifications with improved processors, memory, and multimedia support. The document also covers various types of authoring tools classified by metaphor and capabilities, and the typical multimedia development process.
This document provides an overview of computer hardware components and concepts. It describes the basic components of a computer system including the system unit, CPU, memory, storage, and peripheral devices. It discusses different types of computer systems and platforms. The document also covers hardware basics such as motherboards, buses, caches and processors. Finally, it discusses computer networks, storage technologies, input devices and output devices.
This document discusses digital audio and summarizes key points:
1. Digital audio involves converting sound waves to numerical data that can be easily stored, manipulated and reproduced. It allows for two types of sounds - analog and digital.
2. Characteristics of digital audio include sampling rate, amplitude, channels. Common sampling rates are 11.025KHz, 22.5KHz and 44.1KHz. File size is calculated based on these characteristics.
3. Popular audio file formats include WAV, AIFF, MP3, AAC which allow for compression. MIDI stores musical data separately from audio and allows for editing of notes.
The document discusses several multimedia formats for audio and video, including ASF, ASX, WMA, WMV, MIDI, RealAudio, AU, AIFF, SND, WAVE, MP3, AVI, Windows Media, MPEG, QuickTime, RealVideo, and Shockwave. It provides brief descriptions of each format including what type of content they support and their typical file extensions.
CDs were originally able to store more data than computer hard drives but hard drives now far exceed CD capacity. By 2007, over 200 billion CDs had been sold worldwide, though sales have declined as digital storage and distribution has increased. CD pros include not being able to crash and easy use, while cons are being scratchable and having a small storage capacity. MP3s use lossy compression to reduce file sizes but also reduce audio quality slightly. MP3 pros are small file sizes and wide compatibility, while the con is potential quality loss. WAV files are uncompressed and highest quality but also largest in size, with pros being quality and support, and cons being large file sizes and slow importing.
This document discusses various video and audio formats including MPEG-1, MPEG-2, MPEG-4, H.264, WMV, DivX, 3GP, ASF, AVI, EVO, MKV, MOV, MP4, MPG, NUT, OGG, RMVB, and VOB. It provides information on the standards organizations that developed these formats, the types of video and audio codecs they support, and what applications or devices commonly use certain formats.
This document discusses digital sound, including sampled and synthesized sound. It provides details on:
- How sampled sound works by digitally recording analog sound waves, with quality depending on sample resolution and rate.
- How synthesized sound uses MIDI to send commands to synthesizers to generate new sounds.
- The advantages of digital sound over analog, such as noise reduction, editing capabilities, and ease of distribution.
- Guidelines for using sound in multimedia, such as identifying its purpose, using high quality sound, and avoiding excessive use.
The document discusses MIDI (Musical Instrument Digital Interface), which allows musical instruments and devices to communicate. It describes MIDI's components like synthesizers, sequencers, tracks, channels, and messages. MIDI provides a low-bandwidth way to transmit musical data and sound effects over the web by moving sound production to the client. It can be used to synchronize devices and convey musical performance data for applications like multimedia, games, and karaoke.
The computer consists of both hardware and software. The key hardware components include the processor, motherboard, graphics card, sound card, network card, memory, disk drives, monitor, and peripherals like keyboards, mice, and printers. The processor performs calculations, the motherboard connects components, the graphics card handles display output, and memory temporarily stores active programs and data for processing. Disk drives provide permanent storage. Software includes operating systems and application programs.
1. The document discusses different audio file formats including uncompressed, lossless compressed, and lossy compressed formats.
2. Uncompressed formats like .wav and .aiff store audio with no loss of quality but have large file sizes, while lossy compressed formats like .mp3 reduce quality to greatly reduce file size through techniques like perceptual encoding.
3. Lossless compressed formats like .flac and .alac provide compression without any quality loss by eliminating redundant data, offering file size reduction of around 2:1 compared to uncompressed.
Hardware For Creating And Displaying Multimedia!Tom.B
This document discusses hardware for creating and displaying multimedia. It identifies video cameras, digital cameras, and microphones as input devices for capturing video, images, and sound, respectively. It then discusses screens, projection devices, and speakers as hardware for displaying captured media, with screens providing immediate feedback and projection devices projecting the computer screen onto a larger display. Head-up displays are also mentioned as devices for wearing and viewing virtual reality information. The document credits Thomas Boyes Production and the Information Processes and Technology HSC Course Book.
Digital video can be recorded and edited on a computer. It is stored using file formats like AVI, MOV, MPEG, and FLV which determine compatibility and file size. Digital video is composed of individual frames that have a rate, size, and color depth. Video editing software allows cutting, combining, and adding effects to video clips. Captured digital video can be used in multimedia products like presentations, websites, and games.
There are three main types of audio file formats: uncompressed, lossless compression, and lossy compression. Lossless compression preserves all audio quality while reducing file size, while lossy compression permanently removes some audio information to greatly reduce file size. Common audio formats include WAV (uncompressed), lossless WMA, MP3 and AAC (lossy), and MIDI (event-based musical instrument data). Audio is digitized through sampling, with higher sampling rates and more bits per sample providing better quality but larger file sizes. Formats like WAV and AIFF store uncompressed audio, while MP3 and WMA use lossy compression to reduce file sizes.
Sound formats are file formats for storing digital audio data on a computer. There are three main types: uncompressed formats like WAV and AIFF which maintain quality but have large file sizes, lossless compressed formats like FLAC which reduce file size without quality loss, and lossy compressed formats like MP3 and AAC which significantly reduce file size at the cost of some quality loss. Lossy formats are best for sharing and streaming audio online or on mobile devices due to their small file sizes.
The document discusses various file formats for different types of digital files. It begins by defining what a file format is and how it specifies how information is encoded for storage. It then provides examples of common image, audio, video, and text file formats. For each type of file, it lists some of the most popular specific formats like JPEG, PNG, MP3, WAV, AVI, DOC, HTML, and PDF. It provides brief descriptions of each format including what they are called, their file extensions, how they compress or store data, browser support, and common uses. The document serves to introduce and compare some of the most widely used file formats.
This document is a story by Meakin Armstrong about growing up in Kobe, Japan in the late 1960s as the child of an American consul-general. It describes witnessing protests outside the American compound on Christmas Eve in 1969, with protesters shouting and police beating back crowds. While this was happening, the author's father had the family sing Christmas carols inside to record for relatives as B-52 bombers flew overhead on their way to the Vietnam War. The story provides context about the author's father's role as consul-general and life inside the sterile American compound surrounded by a thick outer wall in Japan during a period of anti-American sentiment.
This document provides an overview of multimedia devices and mass storage technologies used with PCs. It discusses sound cards, digital cameras, MP3 players, and optical storage devices like CDs and DVDs. The document also covers topics like CPU technologies for multimedia, mass storage devices for backups, and troubleshooting multimedia and storage issues.
Optical storage such as CDs and DVDs can store much higher densities than magnetic disks and are not affected by magnetic fields, making them more secure and stable. However, optical drives are slower than hard drives. DVDs can store more data than CDs due to their ability to place pits closer together. Different optical disk formats include read-only, write-once, and rewritable, with rewritable allowing erasing and rewriting data. DVD burners are computer drives that record to DVDs, while DVD recorders are standalone units. Portable DVD players allow multi-format playback. Potential successors to DVDs are HD DVDs and Blue Ray, with Blue Ray capable of storing up to 100GB of data.
El documento describe las Directrices y Plan de Ordenación Territorial del Litoral de la Región de Murcia, que establecen objetivos de desarrollo sostenible, mejora de la calidad de vida y equilibrio territorial. Se propone la Actuación de Interés Regional Marina de Cope en la Subárea Funcional de Águilas-Lorca para potenciar el turismo de calidad a través de una oferta hotelera, campos de golf, marina interior y deportes al aire libre de forma respetuosa con el medio ambiente.
The document discusses different types of secondary storage used in computer systems, focusing on magnetic disk storage. It describes diskettes and hard disks, the basic components and technologies used. Diskettes are flexible and store 1.44 MB or less, while hard disks are rigid platters that can store hundreds of gigabytes. Hard disks assemble multiple platters and use read/write heads to access and transfer data via tracks and sectors.
This document discusses different file formats, input and output devices, and storage techniques discussed in Chapter 3 of the textbook Fundamentals of Multimedia. It provides information on common file formats like GIF, JPEG, PNG, and TIFF. It also describes various input devices for multimedia like mice, touchscreens, and digital pens. Finally, it covers storage media such as magnetic disks, optical disks, magnetic tape, and their characteristics.
The document discusses different types of storage media including magnetic tape, optical disks, compact disks, and digital versatile disks. It describes the key characteristics of each type of media such as storage capacity, read/write capabilities, and common uses. The document also covers components needed for multimedia, including optical disk drives, sound cards, speakers, headphones, microphones, graphics cards, and processors.
Computer Architecture - Hardware - Lesson 9 - Multimedia and Mass Storage - E...Eric Vanderburg
This document discusses various multimedia and mass storage devices used in computer systems. It describes sound cards and their role in digitizing and processing audio. Digital cameras are explained as translating light signals into digital images, usually stored as JPEG files. MP3 players are summarized as storing music files using hard drives or flash memory. Optical drives like CD-ROMs, DVD-ROMs, and burners are outlined. Tape drives are mentioned as providing high storage capacity at low cost. RAID configurations are also briefly noted.
Cs8092 computer graphics and multimedia unit 4SIMONTHOMAS S
This document provides an overview of multimedia system design and multimedia file handling. It discusses multimedia basics and system architecture. Key topics covered include defining objects for multimedia systems, multimedia data interface standards, compression and decompression, data and file format standards, and multimedia I/O technologies. It also examines digital voice and audio, video, image and animation, and full motion video. Storage and retrieval technologies are also mentioned.
The document discusses the definition and types of multimedia. Multimedia is defined as any presentation that combines several media such as text, animation, graphics, sound, video and streaming content. There are four main types of multimedia: still media like photos, dynamic media like animation and video, interactive media like websites, and streaming media which is delivered over the internet. The document also discusses multimedia software, hardware, skills needed for creation, and standards.
This chapter discusses installing and supporting various input/output (I/O) devices for personal computers. It describes the basic principles for installing I/O devices and different types of devices including keyboards, mice, barcode readers, fingerprint readers, touch screens, ports on the motherboard, monitors, projectors, and video cards. The chapter provides guidance on installing and troubleshooting these various devices.
Input devices take in user commands and data, output devices engage our senses to present information, and storage holds data for future use. Common input devices include keyboards, mice, microphones, and digital cameras. Output is presented on displays and printers, while various storage technologies like hard disks, optical disks, solid-state drives, and tape hold data over time. Emerging technologies may allow new forms of input, output, and storage in the future.
The document discusses topics related to supporting, upgrading, and troubleshooting notebooks, including selecting and connecting peripheral devices. It covers special considerations for servicing notebooks like avoiding actions that could void the warranty and using manufacturer-provided diagnostic tools and documentation. Guidelines are provided for caring for notebooks, managing power usage, and setting passwords and backups to secure data. Tablet PCs and PDAs are also briefly mentioned.
The document provides an overview of multimedia devices and mass storage technologies. It discusses sound cards, TV tuner cards, video capture cards, optical storage technologies like CDs, DVDs and Blu-ray discs. It also covers removable storage options like solid state drives, external hard drives and tape drives. The document describes how to install and configure these multimedia and mass storage devices, and how to troubleshoot issues with them.
This document discusses PC hardware related to imaging and sound devices. It covers scanner and digital camera technology, how to install and troubleshoot these devices. It also discusses sound technology including sound cards, speakers and configuring sound in Windows. Topics include selecting devices based on features, installing hardware and troubleshooting common issues.
The document discusses the key components that make up a computer system. It describes hardware components like the motherboard, processor, memory, ports, and disk drives. It also discusses software and how programs are run by the processor. Peripherals that connect to the system like monitors, keyboards and printers are also covered. The document provides details on common components and their functions within a computer system.
This document discusses the key hardware and software components that make up a computer system. It describes the main internal components of the system unit including the motherboard, processor, memory, disk drives, ports, power supply and expansion cards. It also discusses peripheral devices that connect to the system unit like monitors, keyboards and printers. The document provides details on various storage devices, ports, buses and other internal computer components.
This document defines and describes the key hardware and software components that make up a computer system. It discusses the main internal components of the system unit including the motherboard, processor, memory, storage devices, ports, power supply and expansion cards. It also covers peripheral devices that connect to the system unit like monitors, keyboards and printers. Graphics cards and sound cards are described as optional internal components. Networking and connectivity options are also summarized.
Parts of a Computer system. The system unit, I/O devices and peripheral devices. All of the electronic and mechanical equipment in a computer is called the hardware. Examples include:
Motherboard
Hard disk
RAM
Power supply
Processor
Case
Monitor
Keyboard
Mouse
This document discusses the key hardware and software components that make up a computer system. It describes the main internal components of the system unit including the motherboard, processor, memory, disk drives, ports, power supply and expansion cards. It also discusses peripheral devices that connect to the system unit like monitors, keyboards and printers. The document provides details on various storage devices, ports, buses and other internal computer components.
Ahsan by computer component informationAhsanUbaidi
This document discusses computer hardware and software components. It describes the main parts of a computer system including the system unit, monitor, keyboard, mouse and speakers. The system unit contains the motherboard, processor, memory, storage drives and power supply. Hardware refers to physical components while software refers to computer programs.
This chapter introduces the hardware components of a computer system. It explains that hardware requires software to function and direct its operations. The main hardware components discussed are the motherboard, CPU, memory, storage devices like hard drives, optical drives, and ports for input/output. The chapter outlines how these components work together and communicate via buses and cables to allow input, processing, storage and output of data in a computer system.
This document discusses the key components of a computer system. It describes hardware as the physical parts of a computer like the case, motherboard, CPU, memory and storage devices. It also describes software as the programs and instructions that enable the computer to function. The document outlines the main types of computers as desktops and laptops and provides details on the parts that make up each system like the case, monitor, keyboard and mouse for desktops. It discusses the internal computer components such as the CPU, motherboard, memory, storage drives and expansion cards in detail.
This case study analyzes Mizuho Bank's green project financing of a natural gas development project in Indonesia. Mizuho adopted the Equator Principles to fully assess the social and environmental risks. It required the borrower to mitigate risks and committed to environmental protection in the financing contract. More broadly, Mizuho promotes green credit, innovates green financing products, and supports carbon trading to improve the environment. It provides lower interest financing to green projects and assesses customer environmental performance to encourage sustainability.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Buku ini membahas pengantar pemodelan sistem dinamik menggunakan perangkat lunak Vensim PLE, mulai dari pengenalan Vensim, cara menginstalasi dan menggunakan Vensim PLE, membuat diagram simpal kausal dan diagram stock dan flow, menganalisis model, dan contoh-contoh penerapan Vensim untuk memodelkan berbagai sistem dinamik sederhana."
Mata kuliah ini membahas latar belakang dan manfaat teknik-teknik manajemen. Teknik-teknik manajemen berkembang seiring sejarah ilmu manajemen sejak abad ke-18 hingga saat ini. Pionir ilmu manajemen modern adalah Robert Owen dan Charles Babbage yang meletakkan dasar pentingnya sumber daya manusia dan efisiensi dalam organisasi. Mata kuliah ini akan memperkenalkan berbagai teknik analisis manajemen untuk memecah
The document discusses the benefits of exercise for both physical and mental health. Regular exercise can improve cardiovascular health, reduce stress and anxiety, boost mood, and reduce the risk of diseases. It recommends that adults get at least 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week to gain these benefits.
Modul ini membahas tentang pelatihan berbasis kompetensi untuk memperbaiki power supply. Modul ini menjelaskan konsep dasar pelatihan berbasis kompetensi, penjelasan modul, pengakuan kompetensi terkini, dan pengertian istilah terkait. Modul ini juga menjelaskan standar kompetensi untuk memperbaiki power supply dan sumber-sumber yang dibutuhkan untuk mencapai kompetensi tersebut.
Dokumen tersebut merupakan modul pelatihan berbasis kompetensi untuk memperbaiki CD-RW yang mencakup pengertian pelatihan berbasis kompetensi, standar kompetensi yang dibutuhkan, dan langkah-langkah memperbaiki CD-RW.
Dokumen tersebut membahas tentang materi pelatihan berbasis kompetensi untuk melakukan backup data dan sistem. Materi pelatihan ini mencakup pengertian konsep dasar pelatihan berbasis kompetensi, penjelasan modul pelatihan, standar kompetensi yang dipelajari, dan prosedur backup data dan sistem.
Modul ini membahas tentang melakukan restore operating system. Modul ini menjelaskan konsep pelatihan berbasis kompetensi, penjelasan modul, standar kompetensi yang mencakup peta paket pelatihan dan pengertian unit standar kompetensi, serta materi pelatihan untuk melakukan restore operating system.
Dokumen ini berisi modul pelatihan tentang memperbaiki printer. Modul ini menjelaskan konsep dasar pelatihan berbasis kompetensi, penjelasan modul, pengakuan kompetensi terkini, pengertian istilah yang digunakan, standar kompetensi yang mencakup peta paket pelatihan dan unit standar kompetensi, serta materi pelatihan untuk unit kompetensi memperbaiki printer.
The document discusses management ethics and social responsibility. It covers two broad categories of ethical theories - consequential and non-consequential principles. It also addresses factors like time pressure and individual/organizational factors that influence ethical behavior. The document provides checklists and steps for encouraging ethical conduct and discouraging unethical behavior in organizations.
This document discusses strategies for career success. It emphasizes adopting a broad view of one's career that includes self-assessment, exploring opportunities, establishing objectives and timelines, and regularly evaluating progress. It also discusses important elements like developing skills and networks, understanding organizational politics and power structures, and managing stress. The key to career success involves proactive planning and ongoing adaptation to changes in the workplace.
International management involves managing resources across national boundaries and adapting management principles to foreign competition and environments. Companies go international for proactive reasons like accessing new markets and customers or for reactive reasons like avoiding trade barriers. There are two types of multinational companies - those that standardize products for many countries and those that customize products for specific local markets. Managing internationally requires considering various external environments including economic, political, sociocultural, legal, and technological factors.
The document discusses information management systems and their importance in organizations. It covers topics such as the definition of information technology, characteristics of useful information, the role of management information systems in planning, organizing, controlling operations and using resources effectively. It also summarizes the basic functions of computer information systems, including computer operations, system programming, data management, and end-user computing. Lastly, it outlines some of the challenges in managing information systems, such as overcoming resistance to change and enabling employees to use new systems.
Operations management involves planning and controlling the processes that transform inputs into outputs. Key aspects of operations management include operations strategy, facilities layout and location, capacity planning, production planning and control, and quality management. The overall goal is to efficiently manage resources, processes, and outputs.
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
What is an RPA CoE? Session 1 – CoE VisionDianaGray10
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Northern Engraving | Nameplate Manufacturing Process - 2024Northern Engraving
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
The Microsoft 365 Migration Tutorial For Beginner.pptx
Ch09
1. A+ Guide to Hardware, 4e
Chapter 9
Multimedia Devices and Mass Storage
2. Objectives
• Learn about multimedia devices such as sound
cards, digital cameras, and MP3 players
• Learn about optical storage technologies such as CD
and DVD
• Learn how certain hardware devices are used for
backups and fault tolerance
• Learn how to troubleshoot multimedia and mass
storage devices
A+ Guide to Hardware, 4e 2
3. Introduction
• Multimedia capabilities of PCs:
– Text, graphics, audio, video, animation
• Some applications for multimedia:
– Videoconferencing for executives
– Tools for teaching the alphabet to four-year-olds
• Mass storage devices hold multimedia data
• Types of mass storage
– CDs, DVDs, removable drives, and tape drives
A+ Guide to Hardware, 4e 3
4. Multimedia on a PC
• Goal: generate output that emulates reality
• Differences between cyberspace and real space
– Sights and sounds in reality are continuous (analog)
– Computer data is binary (discrete and digital)
• Challenge: bridge world of cyberspace with reality
• Topics covered:
– CPU technologies used to process multimedia data
– Multimedia devices; e.g., sound cards, MP3 players
A+ Guide to Hardware, 4e 4
5. CPU Technologies for Multimedia
• Three early CPU improvements:
– MMX (Multimedia Extensions)
– SSE (Streaming SIMD Extension),
– SSE2, SSE3, and Hyper-Threading (HT)
• Instruction set: operations a CPU can perform
– MMX and SSE help with repetitive looping
– SSE improves 3D graphics
• Pentium 4 can use MMX, SSE, SSE2, SSE3, HT
• AMD uses 3DNow!, HyperTransport!, PowerNow!
A+ Guide to Hardware, 4e 5
6. Sound Cards and Onboard Sound
• Operations performed on sound:
– Basic: recording, storing, and replaying
– Advanced: editing and mixing
• Types of ports
– Output ports: used by speakers
– Input ports: used by microphone, CD player, others
• Surround Sound: supports eight separate channels
• Sound Blaster card: standard for PC sound cards
• Use CD/DVD drive or TV tuner card to bypass CPU
A+ Guide to Hardware, 4e 6
7. Figure 9-1 This motherboard with onboard sound has eight
sound ports
A+ Guide to Hardware, 4e 7
8. Sound Cards and Onboard Sound
(continued)
• Three stages of computerizing sound:
– Sound is digitized (converted from analog to digital)
– Digital data is stored in a compressed data file
– Sound is synthesized (digital to analog or digital out)
• Sampling: process of digitizing sound
• Sample size: number of bits to store sample; e.g., 16
– Larger sample sizes improve accuracy of sampling
• Sampling rate: samples (cycles) per second (Hz)
– Should be twice the frequency of an analog signal
A+ Guide to Hardware, 4e 8
9. Sound Cards and Onboard Sound
(continued)
• 24-bit Creative Labs Sound Blaster card
– Has a universal PCI connector
– Works under Windows and DOS
– Four color-coded ports
– Two internal connections to component in case
• Tips for installations under Windows 2000/XP
– Run the setup program before installing the card
– Drivers not digitally signed may still work in Windows
– You must have administrative privileges
– Use Device Manager to verify installation is error-free
A+ Guide to Hardware, 4e 9
10. Figure 9-2 The Sound Blaster PCI 24-bit sound card has
two internal connections and four ports
A+ Guide to Hardware, 4e 10
11. Digital Cameras and Flash Memory
Devices
• A digital camera works like a scanner
– Scans the field of image set by the picture taker
– Translates the light signals into digital values
– Digital values can be stored, viewed, edited, printed
• TWAIN: format for transferring images to a PC
– Connections may be cabled or wireless
• Solid state device (SSD): memory based on a chip
– Examples: thumb drives and flash memory cards
• Flash memory cards are used in digital cameras
A+ Guide to Hardware, 4e 11
12. Figure 9-13 This digital camera uses an xD Picture Card
and uploads images by way of a USB cable
A+ Guide to Hardware, 4e 12
13. Digital Cameras and Flash Memory
Devices (continued)
• Transferring images to your PC
– Install the software bundled with your camera
– Connect your camera to the PC
– Upload the images
• Editing or printing images once they are on the PC
– Use image-editing software; e.g., Adobe Photoshop
• Picture file formats:
– JPEG (Joint Photographic Experts Group) format
– TIFF (Tagged Image File Format)
• Connect camera to TV using the video-out port
A+ Guide to Hardware, 4e 13
14. Web Cameras and Microphones
• Web camera: captures digital video for use on Web
• Two meanings of Web cam:
– Digital video camera
– Web site providing live or prerecorded video broadcast
• Setting up a personal Web cam for a chat session
– Use setup CD to install software
– Plug in Web camera into a USB port
– If sound is needed, plug in speakers and microphones
– Use chat software to create a live video session
A+ Guide to Hardware, 4e 14
15. Figure 9-17 Instant Messenger session using a Web camera
A+ Guide to Hardware, 4e 15
16. MP3 Players
• MP3 player: device that plays MP3 (.mp3) files
• Moving Pictures Experts Group (MPEG)
– Standard for data compression (MPEG-1 to MPEG-4)
– Stores data that changes from one frame to the next
– Yields compression ratio of 100:1 for full-motion video
• MP3 files are downloaded from PC to MP3 player
• Streaming audio: playing MP3 files directly from Web
• Music files on CDs can be converted to MP3 format
A+ Guide to Hardware, 4e 16
17. MIDI Devices
• Musical instrument digital interface (MIDI)
• Set of standards representing music in digital form
– Specify how to digitally describe and store every note
– Specify how to connect electronic music equipment
• MIDI software offers a wide range of editing options
– Example: add your own voice to a song
• MIDI port
– 5-pin DIN resembling a keyboard port
– Either an input port or output port, but not both
A+ Guide to Hardware, 4e 17
18. Figure 9-19 MIDI ports on an electronic drum set
A+ Guide to Hardware, 4e 18
19. TV Tuner and Video Capture Cards
• TV tuner card: interfaces a PC with a TV
• Video capture card: saves video input to hard drive
• TV tuner/video capture card may also be a video card
• Three ways to incorporate tuner and capture features
– Embed TV tuners and TV captures in motherboard
– Fit card to fit into a PCI, PCI Express x16, or AGP slot
– Connect external device to a USB port
• NTSC (National Television Standards Committee)
– Sets standards for TV tuners and video capture cards
A+ Guide to Hardware, 4e 19
20. Figure 9-22 This notebook computer has embedded TV
tuner and video capture abilities
A+ Guide to Hardware, 4e 20
21. Optical Storage Technology
• CDs and DVDs are optical storage technologies
– Pattern of bits on surface of disc represent bits
– Laser beam reads the bits
• CDFS (Compact Disc File System)
– Original file system (still used by CDs)
• UDF (Universal Disk Format) file system
– New file system (used by DVDs and CDs)
• Windows supports CDFS and UDF
A+ Guide to Hardware, 4e 21
22. Using CDs
• CD drives are read-only or read/writable
• CD surface
– Continuous spiral of sectors of equal length
– Data stored as lands (1) or pits (0)
• Process of reading data
– Laser beam is passed over pits and lands on surface
– Drive reads bit value by amount of laser deflection
• Process of writing data
– CD imprinted (burned) with lands and pits
– Acrylic surface is added to protect the data
A+ Guide to Hardware, 4e 22
23. Figure 9-26 The spiral layout of sectors on a CD surface
A+ Guide to Hardware, 4e 23
24. Using CDs (continued)
• CD must read data at a constant rate
• Problem: linear velocity varies over rotating disk
• Solution 1: maintain constant linear velocity (CLV)
– Slow down disk when laser is near center (200 rpm)
– Speed up disk as laser goes to outer edge (500 rpm)
– Rates given allow for transfer of 150 KBps (audio)
– Drive speed must be increased for video
• Solution 2: maintain constant angular velocity (CAV)
– Disk rotates at a constant speed
– Technology is used in hard disks
A+ Guide to Hardware, 4e 24
25. Using CDs (continued)
• Types of CD drives (also identifies disk)
– CD-ROM drive: read only memory
– CD-R drive: recordable CD
– CD-RW: rewritable CD
• How an optical drive interfaces with motherboard
– Using an ATA or SCSI interface
– Using external drive that plugs into port, such as USB
• Installing a CD drive
– Installed drive identified in directory by letter; e.g., D
– Four choices for installation using parallel ATA (EIDE)
A+ Guide to Hardware, 4e 25
26. Figure 9-30 Rear view of an EIDE CD drive
A+ Guide to Hardware, 4e 26
27. Using DVDs
• DVD (digital video disc or digital versatile disc)
– Single-sided holds up to 8.5 GB of data (movie length)
– Double-sided disc can hold 17 GB of data
– Uses the Universal Disk Format (UDF) file system
• Distinguishing between a CD and DVD
– DVD can use top and bottom surfaces to hold data
– Second opaque layer nearly doubles disc capacity
• Audio data stored in Surround Sound
• Video data stored using MPEG-2 video compression
A+ Guide to Hardware, 4e 27
28. Figure 9-37 A DVD can hold data in double layers
on both the top and bottom of the disc yielding a
maximum capacity of 17 GB
A+ Guide to Hardware, 4e 28
29. Using DVDs (continued)
• Various standards used for reading and writing
• Selection criteria for a DVD drive
– The standards supported by the drive
– Ability of drive to burn CDs
– Write-once and rewritable speeds
• Latest DVD formats: HD-DVD and Blu-ray
• Installing a DVD drive
– Follow the same procedure used for CD drives
– Cabling: power cord, EDEI data cable, audio cord
– 4-pin connector for analog sound, 2-pin for digital sound
A+ Guide to Hardware, 4e 29
31. Caring for Optical Drives and Discs
• Causes of problems:
– Dust, fingerprints, scratches, defects, electrical noise
– Drive is standing vertically
• Some precautions to follow:
– Hold the disc by the edge
– Use a soft, dry cloth to remove dust and fingerprints
– Don’t paste paper on the surface of a CD
– Don’t subject a disc to heat or leave it in direct sunlight
– Don’t make the center hole larger
– Don’t bend a disc
A+ Guide to Hardware, 4e 31
32. Hardware used for Backups and Fault
Tolerance
• Frequent backups help preserve valuable data
– Backup data after four to ten hours of data entry
• Backup media: disc, file server, tape drives
• Providing backup for an organization
– Consider the nature of data and organization’s policy
– One solution: backup data to another PC on network
• Providing backup for a small office
– One options: backup data to a second hard drive
– Utilize an online backup service
A+ Guide to Hardware, 4e 32
33. Tape Drives
• Offer inexpensive, high capacity storage
• Advice: use backup software to manage backups
• Main disadvantage: data accessed sequentially
– Makes file retrieval slow and inconvenient
• A tape drive can be internal or external
• How a tape drive interfaces with a computer
– External or internal drive can use a SCSI bus
– External or internal drive can use a USB connection
– Internal drive can use parallel or serial ATA interface
A+ Guide to Hardware, 4e 33
34. Figure 9-41 The rear of a parallel ATA (IDE ATAPI) tape drive
A+ Guide to Hardware, 4e 34
35. Tape Drives (continued)
• The tapes used by a tape drive
– Full-sized data cartridges 4 x 6 x 5/8 inches
– Smaller minicartridges 3 1/4 x 2 1/2 x 3/5 inches
• Writing to tapes is similar to writing to floppy drives
– FAT at start of the tape tracks data and bad sectors
– The tape must be formatted before use
• When purchasing tapes, match tape to tape drives
• Some tips for cleaning and care
– Keep tapes away from magnetic fields, heat, cold
– Clean drive heads as recommended by manufacturer
A+ Guide to Hardware, 4e 35
36. Removable Drives
• Advantages
– Increases the overall storage capacity of a system
– Simplifies transfer of large files from one PC to another
– Makes it easy to backup and secure important files
• Drop height: height device can fall and still be usable
• Half-life: time for magnetic strength to weaken by half
– Example: writable CDs have half-life of 30 years
• Examples: Microdrive CF, jump drive, Zip drive
• Internal removable drive installed like a hard drive
A+ Guide to Hardware, 4e 36
37. Figure 9-47 The Microdrive CF inserts into a PC Card
adapter, which fits into a notebook PC Card slot
A+ Guide to Hardware, 4e 37
38. Fault Tolerance, Dynamic Volumes,
and RAID
• Fault tolerance: ability to respond to serious problem
– Example: hardware failure or power outage
• RAID (redundant array of independent) disks
– System used to recovers from failure
– Also improves performance
• Two methods used to configure a hard drive:
– Basic disk: creates logical drives within fixed partitions
– Dynamic disk: creates dynamic volumes
• Dynamic disks can only be read by Windows 2000/XP
A+ Guide to Hardware, 4e 38
39. Fault Tolerance, Dynamic Volumes,
and RAID (continued)
• Five types of dynamic volumes:
– Simple: primary partition on a basic disk
– Spanned: can use space from two or more disks
– Striped (RAID 0): data striping across two or more disks
– Mirrored (RAID 1): duplicates data on another drive
– RAID 5: striping across drives and parity checking
• Three ways to adapt a system to hardware RAID
– Motherboard IDE controller supports RAID
– Install a RAID-compliant IDE controller
– Install a SCSI host adapter that supports RAID
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40. Figure 9-51 Basic disks use partitions and logical drives
to organize a hard drive, and dynamic disks use dynamic
volumes to organize multiple hard drives
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41. Figure 9-52 This motherboard supports RAID 0 and RAID 1
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42. Troubleshooting Multimedia Devices
• General guidelines
– Do not touch chips on circuit boards
– Do not touch disk surfaces where data is stored
– Don not stack components on top of one another
– Do not subject components to magnetic fields or ESD
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43. Problems with CD, CD-RW, DVD, or
DVD-RW Installation
• Check data cable and power cord connections
• For an EIDE drive, check master/slave jumper set
• For an SCSI drive, check the ID settings
• Check for devices using the same port settings
• Run a virus scan program
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44. Problems when Burning a CD
• Make sure the disk capacity has not been exceeded
• Ensure hard drive has at least 1 GB of free space
• Close other programs before you begin
• Try a different brand of CDs
• Try using a slower burn rate
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45. Figure 9-54 Slow down the CD-RW write speed to
account for a slow Windows system
A+ Guide to Hardware, 4e 45
46. Troubleshooting Sound Problems
• Some questions to ask:
– Are the speakers turned on?
– Is the speaker volume turned up?
– Is the volume control for Windows turned up?
• Some troubleshooting tasks for installation problems
– Download new or updated drivers
– Uninstall and reinstall the sound card
• Some ways to resolve issue of games without sounds
– Update and install new drivers
– Reduce sound acceleration
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47. Figure 9-55 Adjust sound hardware acceleration
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48. Troubleshooting Tape Drives
• A minicartridge does not work
– Verify that the minicartridge is write-enabled
– Take the minicartridge out and reboot
• Data transfer is slow
– Change software settings for speed and compression
• The drive does not work after the installation
– Use Device Manager to check for errors
• The drive fails intermittently or gives errors
– Try a new tape
– Reformat the tape
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49. Summary
• Multimedia devices use digital data to model reality
• Sampling digitally captures analog sights and sounds
• Sound cards enable you to record, store, replay, and
edit sound
• Digital cameras work much like scanners
• Important image formats: JPEG and TIFF
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50. Summary (continued)
• MPEG: set of compression standards for motion
pictures, video, and audio
• Types of optical storage technology: CDs and DVDs
• CD/DVD disk surface uses lands and pits to represent
binary data
• Other mass storage devices: tape drives, removable
drives such as Zip
• RAID: system for providing fault tolerance and
improving performance
A+ Guide to Hardware, 4e 50