Graphics Output Hardware Devices
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Computer graphics is technology that deals with designs and pictures created on computers. Graphics hardware output devices generate and display computer graphics. These include monitors, which allow users to see images produced by computers in varying quality depending on the monitor's size and resolution, printers, which print computer graphics in color, black and white or grayscale in different sizes, and plotters, which print vector graphics using moving pens or knives. Phosphors in monitors are chosen for their color characteristics and persistence to provide light. Electron guns use electrostatic fields to focus electron beams for applications such as cathode ray tubes in old computer and television monitors.
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Input and output devices
Input and output devices allow communication between a computer system and the outside world. Input devices such as keyboards, mice, and microphones allow data and information to enter the computer. Output devices like monitors, printers, and speakers allow the computer to display and share information with users. Common input devices include keyboards, mice, touchscreens, scanners, and microphones. Common output devices are monitors, printers, speakers, and projectors. Devices like network cards and modems can serve as both input and output devices to facilitate communication between computers.
Different types of printers
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
I/O devices - Computer graphics
This document discusses graphics software and input devices. It describes two types of graphics software: general programming packages that provide extensive graphics functions, and special-purpose application packages designed for non-programmers. It also outlines some basic functions of general packages and examples of application packages. The document then discusses common input devices like mice, trackballs, tablets, and touch panels, describing how touch panels, light pens, and other devices determine screen position.
Input devices
This document discusses various input devices used for computer graphics workstations, including keyboards, mice, trackballs, spaceballs, joysticks, digitizers, image scanners, touch panels, light pens, and voice systems. These input devices allow users to input data, position screen cursors, select coordinates, and initiate graphics operations through mechanisms like buttons, wheels, sensors that detect motion and pressure, and voice recognition. Common input devices include mice, keyboards, graphics tablets, and touchscreens, while others like data gloves and spaceballs provide additional degrees of freedom for spatial input and manipulation in areas like virtual reality and 3D modeling.
graphics hardware input devices
Computer graphics involves using a computer to produce and manipulate visual images. Graphics hardware is needed for both input and output of graphical information. Common graphics input hardware includes mice, tablets, joysticks, light pens, and trackballs which allow a user to indicate positions on a screen and interact with digital images. Scanners are also input devices that allow physical images and photos to be brought into digital form for editing and manipulation on a computer.
Input devices in computer graphics
Input devices are used to input information into a computer. Common input devices include keyboards, mice, graphic tablets, data gloves, light pens, and graphic cards. Keyboards are the most widely used input device for typing text. Mice are commonly used pointing devices that work by moving a ball or optical sensor. Graphic tablets allow users to hand draw images similar to drawing with paper and pencil. Data gloves are worn like normal gloves but have sensors to allow hand gestures to interact with virtual objects. Light pens can select objects on a display screen by pointing. Graphic cards are hardware that processes graphics and enables the display of images on a monitor.
Devices that output Hardcopy
Dot matrix printers use pins to strike an ink ribbon and transfer ink to paper, forming characters and images from arrangements of dots. They provide low-cost printing but also low resolution and quality. Laser printers use heat and pressure to bond toner particles to paper in the pattern of an image formed by a laser beam scanning a photosensitive drum. They offer higher quality printing than inkjet printers. Printers can be categorized as either impact printers that use a mechanism to transfer ink, like dot matrix, or non-impact printers like inkjet and laser that use other ink transfer methods.
IO Devices
Input and output devices allow interaction between users and computers. Input devices receive data for processing while output devices display or print the processed data. Common input devices include keyboards, mice, scanners, microphones, and webcams. Keyboards allow text input while pointing devices like mice allow navigation. Scanners digitize physical documents and images. Microphones and webcams capture audio and video.
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Input and output devices
Input and output devices allow communication between a computer system and the outside world. Input devices such as keyboards, mice, and microphones allow data and information to enter the computer. Output devices like monitors, printers, and speakers allow the computer to display and share information with users. Common input devices include keyboards, mice, touchscreens, scanners, and microphones. Common output devices are monitors, printers, speakers, and projectors. Devices like network cards and modems can serve as both input and output devices to facilitate communication between computers.
Different types of printers
A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper.
There are two types of printers.
Impact printers
Non-Impact printers
I/O devices - Computer graphics
This document discusses graphics software and input devices. It describes two types of graphics software: general programming packages that provide extensive graphics functions, and special-purpose application packages designed for non-programmers. It also outlines some basic functions of general packages and examples of application packages. The document then discusses common input devices like mice, trackballs, tablets, and touch panels, describing how touch panels, light pens, and other devices determine screen position.
Input devices
This document discusses various input devices used for computer graphics workstations, including keyboards, mice, trackballs, spaceballs, joysticks, digitizers, image scanners, touch panels, light pens, and voice systems. These input devices allow users to input data, position screen cursors, select coordinates, and initiate graphics operations through mechanisms like buttons, wheels, sensors that detect motion and pressure, and voice recognition. Common input devices include mice, keyboards, graphics tablets, and touchscreens, while others like data gloves and spaceballs provide additional degrees of freedom for spatial input and manipulation in areas like virtual reality and 3D modeling.
graphics hardware input devices
Computer graphics involves using a computer to produce and manipulate visual images. Graphics hardware is needed for both input and output of graphical information. Common graphics input hardware includes mice, tablets, joysticks, light pens, and trackballs which allow a user to indicate positions on a screen and interact with digital images. Scanners are also input devices that allow physical images and photos to be brought into digital form for editing and manipulation on a computer.
Input devices in computer graphics
Input devices are used to input information into a computer. Common input devices include keyboards, mice, graphic tablets, data gloves, light pens, and graphic cards. Keyboards are the most widely used input device for typing text. Mice are commonly used pointing devices that work by moving a ball or optical sensor. Graphic tablets allow users to hand draw images similar to drawing with paper and pencil. Data gloves are worn like normal gloves but have sensors to allow hand gestures to interact with virtual objects. Light pens can select objects on a display screen by pointing. Graphic cards are hardware that processes graphics and enables the display of images on a monitor.
Devices that output Hardcopy
Dot matrix printers use pins to strike an ink ribbon and transfer ink to paper, forming characters and images from arrangements of dots. They provide low-cost printing but also low resolution and quality. Laser printers use heat and pressure to bond toner particles to paper in the pattern of an image formed by a laser beam scanning a photosensitive drum. They offer higher quality printing than inkjet printers. Printers can be categorized as either impact printers that use a mechanism to transfer ink, like dot matrix, or non-impact printers like inkjet and laser that use other ink transfer methods.
IO Devices
Input and output devices allow interaction between users and computers. Input devices receive data for processing while output devices display or print the processed data. Common input devices include keyboards, mice, scanners, microphones, and webcams. Keyboards allow text input while pointing devices like mice allow navigation. Scanners digitize physical documents and images. Microphones and webcams capture audio and video.
Monitors & workstation,Donald ch-2
A graphics monitor is a display that can show graphics in addition to text. Graphics monitors are used in applications like air traffic control, medical imaging, and CAD. A workstation is a powerful computer optimized for visualization and manipulation of complex data like 3D modeling, simulation, and image rendering. Workstations have specifications like 64MB or more of RAM, high-resolution graphics screens, large displays, and built-in network support. They are used for graphics-intensive applications like 3D design, video editing, and CAD. A server handles data requests from other computers on a network and hosts applications, while a workstation is a personal computer used for graphics applications and intensive programs by professional users.
Computer graphics
The document discusses various types of raster images and display technologies. Raster images represent pictures as a grid of pixels stored as numerical values. Grayscale images vary pixel depth to generate different colors. Color images use three values per pixel. Display technologies discussed include CRTs, LCDs, plasma displays, and other emissive and non-emissive displays. CRTs use electron guns and phosphors to generate images while LCDs use liquid crystals and polarized light.
Printer and its types
There are two main types of printers: impact printers and non-impact printers. Impact printers use mechanisms like pins or hammers that physically strike the paper, and include dot matrix, daisy wheel, line, drum, and chain printers. Non-impact printers do not physically strike the paper and include inkjet printers that spray ink and laser printers that use toner and electricity to form images.
Output devices
The document discusses various types of output devices used by computers. It describes visual display units (VDUs or monitors), printers, plotters, and speakers. It provides details on different types of printers like dot matrix, inkjet, daisy wheel, and laser printers. It explains that output devices display, print, or transmit the results of processing from the computer's memory. Monitors can display graphics, text, and video, while printers provide hard copies in various speeds and qualities. Plotters are useful for engineering drawings and produce high quality outputs. Speakers convert electrical signals to sound.
Printers by tahir ijaz
This document discusses different types of printers. It describes impact printers, such as dot matrix, daisy wheel, and line printers, which form characters by physically striking an inked ribbon onto paper. Non-impact printers are also discussed, including inkjet, photo, laser, thermal, and mobile printers. The document provides details on the mechanisms and functions of each printer type. It concludes with a brief explanation of multifunction peripherals that combine printing, scanning, copying, and faxing capabilities.
Printer's
Impact printers work by physically striking an ink ribbon to transfer characters to paper while non-impact printers like inkjet and laser printers avoid physical contact. Dot matrix printers use rows of pins to form characters as ink is transferred to paper. Laser printers use toner powder and heat to fuse characters onto paper at high speeds. The type of printer chosen depends on factors such as output volume, quality needs, location, and whether color or copies are required.
Printer Plotter (special printers )
Plotters (Special Printer)
Amazing Graphics of the PPT.
Hope you find it useful.
and please like the PPT.
Graphics inputdevices
This document discusses various graphical input devices used to provide data and control signals to information processing systems. It describes keyboards, mice, trackballs, spaceballs, joysticks, data gloves, digitizers, graphics tablets, image scanners, and light pens. These input devices allow users to enter text, position cursors, control machines and games, draw and paint digitally, and scan objects. The computer graphics industry utilizes many of these input devices and has become a major field for creating animated movies, technical drawings, and other digital graphics.
Presentation printer
This document provides an overview of various printer types, including dot matrix printers, inkjet printers, and laser printers. It discusses the key characteristics of each type of printer. Dot matrix printers use a matrix of pins to create dots and are impact printers, while inkjet printers propel liquid ink droplets onto paper and laser printers use a laser beam to project an image onto a rotating drum to print high quality text and images. The document also briefly mentions future printer technologies like 3D printers and inkless printers.
Plotters
A plotter is a vector scan output device that prints directly to positions on a page to draw diagrams rather than scanning the entire page like a raster printer. It receives instructions from a computer on commands like moving the pen carriage to positions or drawing geometric shapes. Plotters can be either flatbed models where the paper remains stationary while the pen moves, or drum plotters where the paper wraps around a cylinder and both paper and pen move during printing, making them suitable for large architectural drawings.
Printers
The document discusses different types of hardcopy output devices, including impact printers like dot matrix printers and non-impact printers like inkjet and laser printers. It provides details on the working, speed, and quality of these printer types and compares factors such as image quality and cost. Additional output devices covered include all-in-one peripherals, high quality photo printers, and plotters.
Output devices
Output devices include monitors, printers, speakers, headphones, and data projectors. Monitors display visual information and come in CRT and LCD varieties, while printers produce hard copies using technologies like dot matrix, inkjet, and laser printing. Speakers and headphones output audio, with speakers providing sound for multiple listeners and headphones for private listening. Data projectors display computer information on a large screen for groups.
Types of Printers
The document discusses different types of computer printers. It explains that printers are output devices that provide a hard copy of data. It describes impact printers, such as dot matrix and daisy wheel printers, which physically strike an ink ribbon to print, and non-impact printers like inkjet and laser printers which print without touching the paper. It provides details on how various impact and non-impact printers work.
Random scan displays and raster scan displays
Raster scan displays work by sweeping an electron beam across the screen in horizontal lines from top to bottom. As the beam moves, its intensity is turned on and off to illuminate pixels and form an image. The pixel values are stored in and retrieved from a refresh buffer or frame buffer. Random scan displays draw images using geometric primitives like points and lines based on mathematical equations, directing the electron beam only where needed. Raster scans have higher resolution but jagged lines, while random scans produce smooth lines but cannot display complex images. Both use a video controller and frame buffer in memory to control the display process.
Input devices
This document describes various common input devices for computers. It discusses keyboards, mice, joysticks, light pens, trackballs, scanners, graphic tablets, microphones, magnetic ink card readers, optical character readers, bar code readers, and optical mark readers. These input devices allow humans to interact with computers by entering text, numbers, images, audio, and other data in digital form for processing.
Animation
Computer animation involves creating moving images using computer technology. There are two main categories: computer-generated animation created solely using animation software, and computer-assisted animation where traditional animation is computerized. Animation is created by displaying a series of pictures or frames in quick succession to simulate movement. There are four main components to constructing an animation sequence: storyboard layout, object definition, keyframe specification, and generation of in-between frames to show smooth movement between keyframes. Motion in animation can be controlled through geometric, physical, or behavioral methods.
Input and output devices
This document provides an overview of computer input and output devices. It discusses that input refers to instructions and data entered into a computer through devices like keyboards, mice, microphones, scanners, joysticks, and touch screens. Output is the processed data produced by the computer through monitors, speakers, and printers. Different types of monitors like CRT and flat panel are described as well as impact and non-impact printers.
Flat panel displays
Direct-view storage tubes store picture information directly behind the screen using an electron beam to write a charged pattern on a fine mesh grid coated with dielectric. A flood electron gun then emits a continuous flood of electrons that pass through the grid, attaching to positively charged portions and striking the phosphors. This stored charge pattern is what displays the image without needing refreshment like a standard CRT. Advantages are very high resolution images without flicker, while disadvantages are inability to display color and inability to fully erase selected areas.
Computer Graphics
This document contains questions and answers about computer graphics. It begins by defining computer graphics as pictures and movies created using computers, usually referring to image data created with specialized graphics hardware and software. Applications of computer graphics mentioned include computer-aided design, presentation graphics, computer art, entertainment, education and training, visualization, image processing, and graphical user interfaces. Key terms like pixel, resolution, aspect ratio, and persistence are also defined. The document then discusses video display devices and CRTs, and explains raster scan and random scan display systems. Color CRTs using beam penetration and shadow mask techniques are also covered.
Output Device
Output devices such as monitors, printers, and speakers are discussed. Monitors can be CRT or TFT, with TFT being newer, smaller, and quieter than CRT but with potentially less quality. Printers include laser, inkjet, dot matrix, and plotters. Laser printers are fast and high quality but expensive, while inkjet printers are cheaper but slower. Dot matrix printers can make carbon copies but are low quality and loud. Plotters can print on large paper but are slow. Speakers help with using computers but can disturb others, while lights provide status signals.
Output devices and types of printers.pptx
Monitors and printers are two common output devices that receive data from computers. Monitors display information visually while printers provide a hard copy output. There are different types of monitors including CRT and LCD, and different types of printers such as inkjet printers, laser printers, and dot matrix printers. Each printer type uses a distinct printing method such as spraying ink, using a laser beam, or striking pins to produce characters on paper.
BASIC COMPUTER CONCEPTS.pptx
Charles Babbage created the first computer called the Analytical Machine in the 19th century to automate tedious mathematical calculations. Computers store, process, and retrieve data using hardware and software. Common input devices include keyboards, mice, scanners, microphones, and touch screens. Output is displayed on monitors or printed using printers, plotters, and speakers which produce audio output.
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Monitors & workstation,Donald ch-2
A graphics monitor is a display that can show graphics in addition to text. Graphics monitors are used in applications like air traffic control, medical imaging, and CAD. A workstation is a powerful computer optimized for visualization and manipulation of complex data like 3D modeling, simulation, and image rendering. Workstations have specifications like 64MB or more of RAM, high-resolution graphics screens, large displays, and built-in network support. They are used for graphics-intensive applications like 3D design, video editing, and CAD. A server handles data requests from other computers on a network and hosts applications, while a workstation is a personal computer used for graphics applications and intensive programs by professional users.
Computer graphics
The document discusses various types of raster images and display technologies. Raster images represent pictures as a grid of pixels stored as numerical values. Grayscale images vary pixel depth to generate different colors. Color images use three values per pixel. Display technologies discussed include CRTs, LCDs, plasma displays, and other emissive and non-emissive displays. CRTs use electron guns and phosphors to generate images while LCDs use liquid crystals and polarized light.
Printer and its types
There are two main types of printers: impact printers and non-impact printers. Impact printers use mechanisms like pins or hammers that physically strike the paper, and include dot matrix, daisy wheel, line, drum, and chain printers. Non-impact printers do not physically strike the paper and include inkjet printers that spray ink and laser printers that use toner and electricity to form images.
Output devices
The document discusses various types of output devices used by computers. It describes visual display units (VDUs or monitors), printers, plotters, and speakers. It provides details on different types of printers like dot matrix, inkjet, daisy wheel, and laser printers. It explains that output devices display, print, or transmit the results of processing from the computer's memory. Monitors can display graphics, text, and video, while printers provide hard copies in various speeds and qualities. Plotters are useful for engineering drawings and produce high quality outputs. Speakers convert electrical signals to sound.
Printers by tahir ijaz
This document discusses different types of printers. It describes impact printers, such as dot matrix, daisy wheel, and line printers, which form characters by physically striking an inked ribbon onto paper. Non-impact printers are also discussed, including inkjet, photo, laser, thermal, and mobile printers. The document provides details on the mechanisms and functions of each printer type. It concludes with a brief explanation of multifunction peripherals that combine printing, scanning, copying, and faxing capabilities.
Printer's
Impact printers work by physically striking an ink ribbon to transfer characters to paper while non-impact printers like inkjet and laser printers avoid physical contact. Dot matrix printers use rows of pins to form characters as ink is transferred to paper. Laser printers use toner powder and heat to fuse characters onto paper at high speeds. The type of printer chosen depends on factors such as output volume, quality needs, location, and whether color or copies are required.
Printer Plotter (special printers )
Plotters (Special Printer)
Amazing Graphics of the PPT.
Hope you find it useful.
and please like the PPT.
Graphics inputdevices
This document discusses various graphical input devices used to provide data and control signals to information processing systems. It describes keyboards, mice, trackballs, spaceballs, joysticks, data gloves, digitizers, graphics tablets, image scanners, and light pens. These input devices allow users to enter text, position cursors, control machines and games, draw and paint digitally, and scan objects. The computer graphics industry utilizes many of these input devices and has become a major field for creating animated movies, technical drawings, and other digital graphics.
Presentation printer
This document provides an overview of various printer types, including dot matrix printers, inkjet printers, and laser printers. It discusses the key characteristics of each type of printer. Dot matrix printers use a matrix of pins to create dots and are impact printers, while inkjet printers propel liquid ink droplets onto paper and laser printers use a laser beam to project an image onto a rotating drum to print high quality text and images. The document also briefly mentions future printer technologies like 3D printers and inkless printers.
Plotters
A plotter is a vector scan output device that prints directly to positions on a page to draw diagrams rather than scanning the entire page like a raster printer. It receives instructions from a computer on commands like moving the pen carriage to positions or drawing geometric shapes. Plotters can be either flatbed models where the paper remains stationary while the pen moves, or drum plotters where the paper wraps around a cylinder and both paper and pen move during printing, making them suitable for large architectural drawings.
Printers
The document discusses different types of hardcopy output devices, including impact printers like dot matrix printers and non-impact printers like inkjet and laser printers. It provides details on the working, speed, and quality of these printer types and compares factors such as image quality and cost. Additional output devices covered include all-in-one peripherals, high quality photo printers, and plotters.
Output devices
Output devices include monitors, printers, speakers, headphones, and data projectors. Monitors display visual information and come in CRT and LCD varieties, while printers produce hard copies using technologies like dot matrix, inkjet, and laser printing. Speakers and headphones output audio, with speakers providing sound for multiple listeners and headphones for private listening. Data projectors display computer information on a large screen for groups.
Types of Printers
The document discusses different types of computer printers. It explains that printers are output devices that provide a hard copy of data. It describes impact printers, such as dot matrix and daisy wheel printers, which physically strike an ink ribbon to print, and non-impact printers like inkjet and laser printers which print without touching the paper. It provides details on how various impact and non-impact printers work.
Random scan displays and raster scan displays
Raster scan displays work by sweeping an electron beam across the screen in horizontal lines from top to bottom. As the beam moves, its intensity is turned on and off to illuminate pixels and form an image. The pixel values are stored in and retrieved from a refresh buffer or frame buffer. Random scan displays draw images using geometric primitives like points and lines based on mathematical equations, directing the electron beam only where needed. Raster scans have higher resolution but jagged lines, while random scans produce smooth lines but cannot display complex images. Both use a video controller and frame buffer in memory to control the display process.
Input devices
This document describes various common input devices for computers. It discusses keyboards, mice, joysticks, light pens, trackballs, scanners, graphic tablets, microphones, magnetic ink card readers, optical character readers, bar code readers, and optical mark readers. These input devices allow humans to interact with computers by entering text, numbers, images, audio, and other data in digital form for processing.
Animation
Computer animation involves creating moving images using computer technology. There are two main categories: computer-generated animation created solely using animation software, and computer-assisted animation where traditional animation is computerized. Animation is created by displaying a series of pictures or frames in quick succession to simulate movement. There are four main components to constructing an animation sequence: storyboard layout, object definition, keyframe specification, and generation of in-between frames to show smooth movement between keyframes. Motion in animation can be controlled through geometric, physical, or behavioral methods.
Input and output devices
This document provides an overview of computer input and output devices. It discusses that input refers to instructions and data entered into a computer through devices like keyboards, mice, microphones, scanners, joysticks, and touch screens. Output is the processed data produced by the computer through monitors, speakers, and printers. Different types of monitors like CRT and flat panel are described as well as impact and non-impact printers.
Flat panel displays
Direct-view storage tubes store picture information directly behind the screen using an electron beam to write a charged pattern on a fine mesh grid coated with dielectric. A flood electron gun then emits a continuous flood of electrons that pass through the grid, attaching to positively charged portions and striking the phosphors. This stored charge pattern is what displays the image without needing refreshment like a standard CRT. Advantages are very high resolution images without flicker, while disadvantages are inability to display color and inability to fully erase selected areas.
Computer Graphics
This document contains questions and answers about computer graphics. It begins by defining computer graphics as pictures and movies created using computers, usually referring to image data created with specialized graphics hardware and software. Applications of computer graphics mentioned include computer-aided design, presentation graphics, computer art, entertainment, education and training, visualization, image processing, and graphical user interfaces. Key terms like pixel, resolution, aspect ratio, and persistence are also defined. The document then discusses video display devices and CRTs, and explains raster scan and random scan display systems. Color CRTs using beam penetration and shadow mask techniques are also covered.
Output Device
Output devices such as monitors, printers, and speakers are discussed. Monitors can be CRT or TFT, with TFT being newer, smaller, and quieter than CRT but with potentially less quality. Printers include laser, inkjet, dot matrix, and plotters. Laser printers are fast and high quality but expensive, while inkjet printers are cheaper but slower. Dot matrix printers can make carbon copies but are low quality and loud. Plotters can print on large paper but are slow. Speakers help with using computers but can disturb others, while lights provide status signals.
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Output devices and types of printers.pptx
Monitors and printers are two common output devices that receive data from computers. Monitors display information visually while printers provide a hard copy output. There are different types of monitors including CRT and LCD, and different types of printers such as inkjet printers, laser printers, and dot matrix printers. Each printer type uses a distinct printing method such as spraying ink, using a laser beam, or striking pins to produce characters on paper.
BASIC COMPUTER CONCEPTS.pptx
Charles Babbage created the first computer called the Analytical Machine in the 19th century to automate tedious mathematical calculations. Computers store, process, and retrieve data using hardware and software. Common input devices include keyboards, mice, scanners, microphones, and touch screens. Output is displayed on monitors or printed using printers, plotters, and speakers which produce audio output.
Out put devices
This document discusses different types of computer output devices. It notes that there are two main types: soft copy output, which is not printed and includes output on screens; and hard copy output, which is printed output like from printers. It provides examples of common output devices like monitors, printers, plotters and speakers, describing what each produces and how they work at a high level.
Input output devices
Input and output devices allow data and instructions to enter and exit a computer system. Common input devices include keyboards, mice, and scanners, while common output devices include monitors, speakers, and printers. The central processing unit (CPU) controls the system and performs computations, with memory and storage holding instructions and data for processing.
Presentation ICT 11.pptx. A detailed note on Input and Output devices by usin...
A detailed note on Input and Output Devices
Fundamentals of computer output devices
The document summarizes common computer input and output devices. It describes the keyboard and mouse as standard input devices. It then focuses on key output devices like monitors, printers, and touch screens. It explains that monitors receive signals from video cards to provide visual displays, and that printers create physical outputs using various technologies like inkjet or laser printing. It also defines common printer types and characteristics like speed, which is measured in characters per second (cps) or pages per minute (ppm).
Assignment of I to C
The document provides information about the scope and history of computers as well as input and output devices. It discusses how Charles Babbage invented the computer in the 1830s-1870s. It then covers the evolution of computers from mainframes to microcomputers to supercomputers. The document also discusses how computers can be well-suited for distance learning due to features like routine tasks, active participation, and feedback. It provides examples of input devices like mice, keyboards, and scanners that allow data to enter computers. Output devices discussed include monitors, speakers, printers, and projectors that communicate processed data in formats people can understand.
Input & output devices 1122
This document discusses input and output devices. It describes manual input devices like keyboards, mice, and touch screens. It also covers automatic input devices such as magnetic ink character recognition and barcode readers. For output devices it mentions monitors, printers like laser and inkjet printers, and speakers. The document provides details on the use and purpose of each type of input and output device.
Output Devices
The document discusses various types of output devices used in business, including monitors, printers, and plotters. It describes the key characteristics and technologies of CRT and LCD monitors, dot matrix, inkjet, and laser printers, and photo and multifunction printers. Other output devices mentioned include headphones, earbuds, and data projectors. Printers are categorized as either impact printers that use pins to transfer ink to paper, or non-impact printers like inkjet and laser printers that use other methods to place ink on pages.
output, processing, communication devices
The document discusses various types of computer devices. It describes input devices like keyboards and mice that allow users to enter data. It explains output devices like monitors, printers and speakers that display or present data to users. It details processing devices like the CPU, GPU and motherboard that handle intermediate processing of data. It also outlines communication devices such as modems, routers and WiFi cards that enable data transfer and networking.
Output Devices
The document discusses various types of computer peripheral output devices. It describes monitors, which display information on a screen for users to view. Printers are also discussed, including how they work and different printer technologies like inkjet and laser printers. The document mentions other output devices such as plotters, speakers, DVD/CD-ROM drives, and headsets.
Computer presentation : Output Devices
This document provides information about computer output devices and monitors. It discusses the types of monitors, including CRT and flat panel monitors. CRT monitors use electron guns to project beams onto phosphor screens to display images, while flat panel monitors like LCD and LED are thinner. It also discusses monitor features such as size, pixels, resolution, refresh rate, and dot pitch. The document then covers printers, including impact printers like dot matrix and non-impact printers like inkjet and laser printers. It compares different printers and discusses high quality printers used for photos.
Output devices
Output devices
WHAT IS OUTPUT
WHAT ARE OUTPUT DEVICES?
types
1) MONITOR/DISPLAY DEVICES
TYPES OF MONITOR
MONOCHROME MONITOR
COLOR MONITOR
CRT MONITORS
lcd MONITORS
GAS PLASMA MONITORS
3) PRINTERS
IMPACT PRINTERS
DOT MATRIX PRINTERS
DAISY WHEEL PRINTERS
LINE PRINTERS
NON IMPACT PRINTERS
INK JET PRINTERS
LASER PRINTERSS
THERMAL PRINTERS
PHOTO PRINTERS
MOBILE PRINTERS
3) PLOTTERS
4) SPEAKERS/ HEADPHONE
5 MULTIMEDIA/PROJECTORS
Input and output devices.pdf
peripheral device, also known as peripheral, computer peripheral, input-output device, or input/output device, any of various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer. Such devices make up the peripheral equipment of modern digital computer systems.
Peripherals are commonly divided into three kinds: input devices, output devices, and storage devices (which partake of the characteristics of the first two). An input device converts incoming data and instructions into a pattern of electrical signals in binary code that are comprehensible to a digital computer. An output device reverses the process, translating the digitized signals into a form intelligible to the user. At one time punched-card and paper-tape readers were extensively used for inputting, but these have now been supplanted by more efficient devices.
Output Device.pptx
This document discusses different types of computer output devices. It describes monitors, printers, plotters, projectors, and voice response systems. Monitors are the most common output device and come in CRT and LCD varieties. Printers are classified as impact or non-impact and include dot matrix, inkjet, and laser printers. Plotters are used for precision graphics and come in drum and flatbed models. Projectors display computer output on screens, while voice response systems enable computers to verbally communicate through prerecorded audio or text-to-speech synthesis.
Output Device.pptx
This document discusses different types of computer output devices. It describes monitors, printers, plotters, projectors, and voice response systems. Monitors are the most common output device and come in CRT and LCD varieties. Printers are classified as impact or non-impact and include dot matrix, inkjet, and laser printers. Plotters are used for precision graphics and come in drum and flatbed models. Projectors display computer output on screens, while voice response systems enable computers to verbally communicate through prerecorded audio or text-to-speech synthesis.
Output Devices
Computer output devices are used to provide information to users in different formats like visual, audio, and digital. Common output devices include monitors, speakers, printers, projectors, and plotters. Monitors display visual information by processing data through a video card and using pixels created by technologies like LCD. Speakers output audio information by processing audio data through an audio card and translating it into audio signals. Printers provide a hard copy output on paper and come in different types like inkjet and laser printers. Projectors display large images onto screens by processing image data and translating it into video to project. Plotters similarly create hard copy drawings by processing design data and using pens to draw images through a series of lines.
The input and output device
The document discusses various input and output devices used in computers. It describes common input devices like the keyboard, mouse, joystick, scanners, microphones, and digital cameras. It explains how these devices work and their advantages and disadvantages. The document also covers various types of output devices including monitors, printers, plotters and speakers. It provides details on CRT and LCD monitors and different types of printers like impact, non-impact, inkjet and laser printers.
Input and output devices
Used to digitize images or video from the outside world into the computer.
Digital camera
Webcam
Media players
Hardware peripheral that allows computer users to input audio into their computers
MIDI information is sent to a computer that is capable of reproducing an array of digital sounds that resemble traditional analog musical instruments.
Computer game graphics
Pixel art is a form of digital art created at the pixel level and was commonly used in early computer and mobile games. Sprites are 2D images or animations that can be manipulated as a single entity on screen. As 3D graphics became more prevalent, sprites were used to seamlessly integrate flat images into 3D scenes. Computer game graphics can describe anything visual in a game besides sound or text.
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Graphics Output Hardware Devices
- 2. Definition: computer graphics is the technology that deals with designs and pictures on computers. An example of computer graphics is the design of pictures and scenes on a computer game.
- 5. Graphics hardware output devices are those hardware that generates computer graphics and allows them to be shown on a display..
- 7. This allows you to print off the graphics you create and edit on the computer. You can print them off in color, black and white or gray scale in various sizes.
- 8. Plotter is another type of computer printer which prints vector graphics. There are two types of plotters one is a pen plotter which is when a pen moves across the surface of the paper and then there is a knife plotter which uses moving knives to cut into a piece material.
- 9. This allows you to see the images produced by the computer. The quality of the graphics that you see depends on the size and the resolution of the monitor.
- 10. The phosphors used in a graphic display are normally chosen for their color characteristics and persistence. Color should preferably white, particularly for applicants where dark information appears on a light background. Phosphor layers provide most of the light produced by fluorescent lamps, and are also used to improve the balance of light produced by metal halide lamps.
- 11. Electron Gun makes use of electrostatic fields to focus and accelerate the electron beam. A field is generated when two surfaces are raised to different potentials. The most common use of electron guns is in cathode ray tubes, which were widely used in computer and television monitors.