Computer Lecture 2
•Download as PPT, PDF•
1 like•929 views
Input devices such as keyboards and mice allow users to input data and instructions. Keyboards typically use the QWERTY layout and contain around 100 keys. When a key is pressed, the keyboard controller detects it and sends a scan code to the computer's CPU. Mice are pointing devices used to control an on-screen pointer and issue commands via techniques like pointing, clicking, dragging, and right-clicking. Other input devices include touch screens, pens, trackballs, and trackpads.
Report
Share
Report
Share
![INPUT DEVICES ,[object Object]](https://image.slidesharecdn.com/computerlecture-2-1260356863-phpapp01/85/Computer-Lecture-2-1-320.jpg)
Recommended
Mouse
Input devices allow users to interact with computers and include keyboards, pointing devices like mice, and devices that capture audio and video like microphones and cameras. A mouse is a common pointing device that controls the cursor on a screen when moved across a flat surface. Mice reduce the need for keyboards and allow for graphical user interfaces with point-and-click interactions. Different types of mice include mechanical, optical, cordless, and specialized mice like footmice.
Presentation on mouse, keyboard and scanners
The presentation discusses the mouse, keyboard, and scanners. It explains that the mouse is an input device that sends information to the computer when its buttons are clicked and typically has two buttons and a scroll wheel. It notes that the keyboard allows text input into computers and connects wirelessly or via USB. It also explains that scanners capture images from various sources for computer display and editing and come in different types for black-and-white or color scanning.
Input devices
The document discusses the evolution of various input devices for computers, including punch cards, keyboards, mice, touchscreens, and gesture-based inputs. It covers early devices like the lightpen, as well as modern touch interfaces and considerations for touchscreen design like ensuring targets are large enough for finger input. Multi-touch interfaces are also discussed. The document aims to provide an overview of how input devices have changed as computers have become more ubiquitous.
Input & output letizia troisi de menville
The document discusses several input and output devices for computers. It describes joysticks, which allow directional movement and button inputs for gaming. Scanners are used to digitize images and text, with flatbed scanners being the most common type. Printers provide hard copies of digital information at a speed measured in pages per minute. Speakers are used for sound output, with external speakers providing higher quality than internal computer speakers.
The Final Show For It.Htm..
This document provides information on various computer components and concepts such as hardware, software, the central processing unit, printers, scanners, floppy disks, CD-ROMs, mice, joysticks, cables and more. It discusses what they are, how they are used, dos and don'ts for handling certain devices, and types of printers. The overall document aims to educate the reader on basic computer terms, parts, and proper handling of equipment.
Input Devices
This document discusses different types of input devices for computers including keyboards, joysticks, scanners, trackballs, and spaceballs. It describes the basic components and functions of joysticks for computer games and how scanners digitally copy pictures. Trackballs are like upside down mice that rotate instead of moving across a surface. Spaceballs provide six degrees of freedom for spatial positioning input through pressure applied in various directions.
Lec 2 computer basics
1) A computer accepts data as input, processes it according to programmed instructions, and produces output which it can store for future use.
2) Data is represented by characters like letters, numbers and symbols that can be interpreted by humans or computers. Information is organized data that has meaning.
3) Common computer input devices include keyboards, mice, scanners, and microphones. Output devices display or print the results of processing and include monitors, printers, and speakers.
Pointing Devices
Pointing devices are hardware input tools used to control the cursor on a computer screen and include mice, trackballs, touchpads, and more. Mice are the most common pointing device and use movement of the device to move the on-screen cursor in the same direction. Other pointing devices include trackballs, which contain a ball that is rolled to move the cursor, and touchpads, which are flat surfaces that track finger movement to control the cursor. Pointing devices allow users to perform functions like selecting text, icons, and menus.
Recommended
Mouse
Input devices allow users to interact with computers and include keyboards, pointing devices like mice, and devices that capture audio and video like microphones and cameras. A mouse is a common pointing device that controls the cursor on a screen when moved across a flat surface. Mice reduce the need for keyboards and allow for graphical user interfaces with point-and-click interactions. Different types of mice include mechanical, optical, cordless, and specialized mice like footmice.
Presentation on mouse, keyboard and scanners
The presentation discusses the mouse, keyboard, and scanners. It explains that the mouse is an input device that sends information to the computer when its buttons are clicked and typically has two buttons and a scroll wheel. It notes that the keyboard allows text input into computers and connects wirelessly or via USB. It also explains that scanners capture images from various sources for computer display and editing and come in different types for black-and-white or color scanning.
Input devices
The document discusses the evolution of various input devices for computers, including punch cards, keyboards, mice, touchscreens, and gesture-based inputs. It covers early devices like the lightpen, as well as modern touch interfaces and considerations for touchscreen design like ensuring targets are large enough for finger input. Multi-touch interfaces are also discussed. The document aims to provide an overview of how input devices have changed as computers have become more ubiquitous.
Input & output letizia troisi de menville
The document discusses several input and output devices for computers. It describes joysticks, which allow directional movement and button inputs for gaming. Scanners are used to digitize images and text, with flatbed scanners being the most common type. Printers provide hard copies of digital information at a speed measured in pages per minute. Speakers are used for sound output, with external speakers providing higher quality than internal computer speakers.
The Final Show For It.Htm..
This document provides information on various computer components and concepts such as hardware, software, the central processing unit, printers, scanners, floppy disks, CD-ROMs, mice, joysticks, cables and more. It discusses what they are, how they are used, dos and don'ts for handling certain devices, and types of printers. The overall document aims to educate the reader on basic computer terms, parts, and proper handling of equipment.
Input Devices
This document discusses different types of input devices for computers including keyboards, joysticks, scanners, trackballs, and spaceballs. It describes the basic components and functions of joysticks for computer games and how scanners digitally copy pictures. Trackballs are like upside down mice that rotate instead of moving across a surface. Spaceballs provide six degrees of freedom for spatial positioning input through pressure applied in various directions.
Lec 2 computer basics
1) A computer accepts data as input, processes it according to programmed instructions, and produces output which it can store for future use.
2) Data is represented by characters like letters, numbers and symbols that can be interpreted by humans or computers. Information is organized data that has meaning.
3) Common computer input devices include keyboards, mice, scanners, and microphones. Output devices display or print the results of processing and include monitors, printers, and speakers.
Pointing Devices
Pointing devices are hardware input tools used to control the cursor on a computer screen and include mice, trackballs, touchpads, and more. Mice are the most common pointing device and use movement of the device to move the on-screen cursor in the same direction. Other pointing devices include trackballs, which contain a ball that is rolled to move the cursor, and touchpads, which are flat surfaces that track finger movement to control the cursor. Pointing devices allow users to perform functions like selecting text, icons, and menus.
Using the Mouse
The document discusses the basic functions and uses of a computer mouse. It describes the left button, right button, and scroll wheel. The main mouse functions covered are clicking, double-clicking, dragging to move or highlight items, and right-clicking for shortcuts. Different mouse pointer symbols and their meanings are also outlined.
E3 chap-02 mmmm
The document discusses various input and output devices used in computer systems. It describes keyboards, mice, touchscreens, and other pointing devices used for input. It also covers display technologies like CRT and LCD screens, as well as emerging technologies like digital paper. The document explores how these devices enable different styles of interaction and discusses some of the technical considerations around devices like resolution, color depth, and health impacts of older display technologies.
Keyboard & Mouse basics
A standard keyboard has around 110 keys in a QWERTY layout. It can produce characters through pressing keys which the keyboard controller detects and sends to the computer via an interrupt. A computer mouse is a common input device that was invented in 1968 and uses optical, mechanical, or other methods to track movement and send it to the computer.
INPUT DEVICES.doc.p
This document discusses various computer input devices. It describes keyboards, mice, joysticks, scanners, trackballs, and touch screens. For each input device, it provides details on what it is used for and different types. For example, it states that a keyboard allows users to input letters and numbers, and describes the different types of keys found on keyboards. It also explains that a mouse functions as a pointing device to translate hand motions into signals for the computer.
Input an output devices
For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations.
"MOUSE" HARDWARE
The document discusses the history and types of computer mice. It explains that the mouse was invented in 1968 by Douglas Engelbart to control the movement of the cursor on a screen. Mice come in various forms such as optical mice which use light sensors rather than a ball, wireless mice which communicate via radio signals, and trackball mice where the ball is stationary and rolled by the thumb. The mouse's design has evolved over time from square wooden models to smaller, more ergonomic designs with additional features like scroll wheels.
Input devices
A keyboard allows users to input text and commands, while a mouse tracks movement to control the cursor. Other input devices include trackballs, touchpads, graphics tablets, touchscreen monitors, joysticks, scanners, microphones, and webcams - each serving a specialized purpose like navigation, drawing, audio/video capture, or gaming control. Together, these various input mechanisms allow users to interact with digital information and programs in diverse ways.
Light pen
The document discusses the light pen, a pointing device shaped like a pen that contains light sensors and connects to a visual display unit. The tip of the light pen detects light from the screen to identify its location. It works by sensing changes in brightness when the electron gun refreshes spots on the screen. The light pen allows users to touch the screen to activate commands and selections with great position accuracy, similar to a touchscreen. While it provides accuracy and precision for selections and drawing directly on the screen, disadvantages include the inability to erase and fatigue from extended use.
Output & input devices
This document provides information about computer parts and devices. It explains that computers are made up of 3 main parts: the processor, input devices, and output devices. The processor acts as the computer's brain and is usually contained in the central processing unit case. Input devices like keyboards and mice allow users to input information. Output devices such as monitors, speakers, and printers send information out from the computer.
Unit 2 input-output
An input device sends data to a computer. Common input devices include keyboards, mice, touchscreens, cameras, and microphones. Keyboards typically have printed letters and symbols and pressing keys corresponds to written symbols. Keyboards come in different sizes for different devices like standard, laptop, and thumb-sized keyboards. Pointing devices like mice, touchpads, and trackballs allow users to control the cursor position on a screen. Computer vision devices like webcams and scanners can also serve as input devices by capturing images and documents.
Form 1 Term 1 Week 11.1
The document discusses information communication technology and the information processing cycle. It describes various input devices like keyboards, mice, and scanners which allow users to interact with computers and provide instructions. Output devices like monitors, printers and projectors are used to present processed information and results to users. The keyboard is used for typing, mice are used to control the cursor and software, and scanners are used to input text or graphics. Monitors display work, LCD projectors display onto screens, and printers produce hard copies of documents. Input devices provide information to computers while output devices present processed information to users.
Chap2 input devices
Importance of I/O devices,Types of input devices,keyboard
Pointing devices,Speech recognition,Digital camera
Webcam,Scanners,OCR,OMR,MICR,Bar-code reader
Parts of computer, keyboarding, mouse
The document provides instructions on proper typing posture and keyboard hand position. It explains that the fingers should be curved and upright over the home keys with wrists low and forearms parallel to the keyboard. It also lists the home row keys and describes basic mouse functions like single clicking, double clicking, right clicking, and dragging.
computer components and devices
The document discusses various computer input and output devices. It describes common input devices like keyboards, mice and their variants. It also covers other input methods such as touchscreens, microphones and cameras. Regarding output, it explains monitors, projectors, sound systems and different printer types including inkjet, laser and all-in-one printers. It provides details on how these devices work and their benefits.
Input output display devices
The document discusses various input and output devices used in computer systems. It describes common input devices like the keyboard, mouse, trackball, joystick, dataglove, digitizer, image scanners, lightpen, barcode reader, optical mark reader, and voice systems. It also explains popular output display devices such as monitors, printers, and plotters. For each device, it provides details on their key features, types, applications, advantages, and disadvantages.
Types of computer systems
This document defines and describes several types of computer systems including desktop computers, laptops, tablets, handheld computers, personal digital assistants (PDAs), game consoles, and handheld game consoles. Desktop computers have an internal base that houses components and connect to an external screen, keyboard, and mouse. Laptops are portable computers with smaller internal components and an integrated screen and keyboard. Tablets are touchscreen devices that allow internet access without mice or keyboards.
05. Input devices - computer
Basic training on computer and internet for all age group. Now learn computer and internet on your own and surprise your loved ones! :)
Lets Just Go For It! Wish you an Awesome Leaning Experience.
Subscribe to our YouTube channel: https://www.youtube.com/c/TimesRide?sub_confirmation=1
Our Official Website: http://timesride.com
Follow us:
Facebook: https://www.facebook.com/rs.agrawal.9026
Instagram: https://www.instagram.com/timesridenetwork/
Twitter: https://twitter.com/TimesRide
Pinterest: https://in.pinterest.com/ride0472/
Thank You
#AwesomeLearningExperience
#SmartQuickTips&Tricks #LeaningVideos #TimesRide #Keep Learning to Keep Winning!
Basic Parts of a Desktop
This document discusses the parts of a desktop computer. It identifies five main parts: 1) program files/icons which launch programs and open files, 2) the start button which displays the start menu listing programs, 3) the taskbar at the bottom of the screen displaying open windows, 4) the time box showing the current time, and 5) the desktop which is the main working environment. The document provides examples and screenshots to illustrate these parts and their functions. Students are instructed to locate the parts using the mouse pointer and complete a short assignment identifying additional desktop parts and their functions.
Keyboard
This document provides an overview of keyboards, including their history and types. It begins by defining a keyboard as a device that uses an arrangement of buttons to correspond to written symbols. It then describes how a keyboard works, with a key matrix that sends signals to the computer processor. The document outlines the evolution of keyboards from the 1868 typewriter to developments in 1956-1981 with early computers. It introduced specialized command keys and standardized layouts. Finally, it briefly mentions the main types of keyboards such as standard, laptop, flexible and palm-sized varieties.
Input devices
Input devices allow data and instructions to enter a computer system. Common input devices include keyboards, pointing devices like mice, and scanning devices. Keyboards allow text entry and come in various styles. Mice, touchscreens, and other pointing devices control the computer's cursor. Scanners digitize physical documents and images using light sensors. Character and mark recognition devices digitally read special text formats.
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.
IO devices ppt
Here you can get details of input/output devices.
you can find the snaps of first version and latest version of i/o devices.
More Related Content
What's hot
Using the Mouse
The document discusses the basic functions and uses of a computer mouse. It describes the left button, right button, and scroll wheel. The main mouse functions covered are clicking, double-clicking, dragging to move or highlight items, and right-clicking for shortcuts. Different mouse pointer symbols and their meanings are also outlined.
E3 chap-02 mmmm
The document discusses various input and output devices used in computer systems. It describes keyboards, mice, touchscreens, and other pointing devices used for input. It also covers display technologies like CRT and LCD screens, as well as emerging technologies like digital paper. The document explores how these devices enable different styles of interaction and discusses some of the technical considerations around devices like resolution, color depth, and health impacts of older display technologies.
Keyboard & Mouse basics
A standard keyboard has around 110 keys in a QWERTY layout. It can produce characters through pressing keys which the keyboard controller detects and sends to the computer via an interrupt. A computer mouse is a common input device that was invented in 1968 and uses optical, mechanical, or other methods to track movement and send it to the computer.
INPUT DEVICES.doc.p
This document discusses various computer input devices. It describes keyboards, mice, joysticks, scanners, trackballs, and touch screens. For each input device, it provides details on what it is used for and different types. For example, it states that a keyboard allows users to input letters and numbers, and describes the different types of keys found on keyboards. It also explains that a mouse functions as a pointing device to translate hand motions into signals for the computer.
Input an output devices
For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations.
"MOUSE" HARDWARE
The document discusses the history and types of computer mice. It explains that the mouse was invented in 1968 by Douglas Engelbart to control the movement of the cursor on a screen. Mice come in various forms such as optical mice which use light sensors rather than a ball, wireless mice which communicate via radio signals, and trackball mice where the ball is stationary and rolled by the thumb. The mouse's design has evolved over time from square wooden models to smaller, more ergonomic designs with additional features like scroll wheels.
Input devices
A keyboard allows users to input text and commands, while a mouse tracks movement to control the cursor. Other input devices include trackballs, touchpads, graphics tablets, touchscreen monitors, joysticks, scanners, microphones, and webcams - each serving a specialized purpose like navigation, drawing, audio/video capture, or gaming control. Together, these various input mechanisms allow users to interact with digital information and programs in diverse ways.
Light pen
The document discusses the light pen, a pointing device shaped like a pen that contains light sensors and connects to a visual display unit. The tip of the light pen detects light from the screen to identify its location. It works by sensing changes in brightness when the electron gun refreshes spots on the screen. The light pen allows users to touch the screen to activate commands and selections with great position accuracy, similar to a touchscreen. While it provides accuracy and precision for selections and drawing directly on the screen, disadvantages include the inability to erase and fatigue from extended use.
Output & input devices
This document provides information about computer parts and devices. It explains that computers are made up of 3 main parts: the processor, input devices, and output devices. The processor acts as the computer's brain and is usually contained in the central processing unit case. Input devices like keyboards and mice allow users to input information. Output devices such as monitors, speakers, and printers send information out from the computer.
Unit 2 input-output
An input device sends data to a computer. Common input devices include keyboards, mice, touchscreens, cameras, and microphones. Keyboards typically have printed letters and symbols and pressing keys corresponds to written symbols. Keyboards come in different sizes for different devices like standard, laptop, and thumb-sized keyboards. Pointing devices like mice, touchpads, and trackballs allow users to control the cursor position on a screen. Computer vision devices like webcams and scanners can also serve as input devices by capturing images and documents.
Form 1 Term 1 Week 11.1
The document discusses information communication technology and the information processing cycle. It describes various input devices like keyboards, mice, and scanners which allow users to interact with computers and provide instructions. Output devices like monitors, printers and projectors are used to present processed information and results to users. The keyboard is used for typing, mice are used to control the cursor and software, and scanners are used to input text or graphics. Monitors display work, LCD projectors display onto screens, and printers produce hard copies of documents. Input devices provide information to computers while output devices present processed information to users.
Chap2 input devices
Importance of I/O devices,Types of input devices,keyboard
Pointing devices,Speech recognition,Digital camera
Webcam,Scanners,OCR,OMR,MICR,Bar-code reader
Parts of computer, keyboarding, mouse
The document provides instructions on proper typing posture and keyboard hand position. It explains that the fingers should be curved and upright over the home keys with wrists low and forearms parallel to the keyboard. It also lists the home row keys and describes basic mouse functions like single clicking, double clicking, right clicking, and dragging.
computer components and devices
The document discusses various computer input and output devices. It describes common input devices like keyboards, mice and their variants. It also covers other input methods such as touchscreens, microphones and cameras. Regarding output, it explains monitors, projectors, sound systems and different printer types including inkjet, laser and all-in-one printers. It provides details on how these devices work and their benefits.
Input output display devices
The document discusses various input and output devices used in computer systems. It describes common input devices like the keyboard, mouse, trackball, joystick, dataglove, digitizer, image scanners, lightpen, barcode reader, optical mark reader, and voice systems. It also explains popular output display devices such as monitors, printers, and plotters. For each device, it provides details on their key features, types, applications, advantages, and disadvantages.
Types of computer systems
This document defines and describes several types of computer systems including desktop computers, laptops, tablets, handheld computers, personal digital assistants (PDAs), game consoles, and handheld game consoles. Desktop computers have an internal base that houses components and connect to an external screen, keyboard, and mouse. Laptops are portable computers with smaller internal components and an integrated screen and keyboard. Tablets are touchscreen devices that allow internet access without mice or keyboards.
05. Input devices - computer
Basic training on computer and internet for all age group. Now learn computer and internet on your own and surprise your loved ones! :)
Lets Just Go For It! Wish you an Awesome Leaning Experience.
Subscribe to our YouTube channel: https://www.youtube.com/c/TimesRide?sub_confirmation=1
Our Official Website: http://timesride.com
Follow us:
Facebook: https://www.facebook.com/rs.agrawal.9026
Instagram: https://www.instagram.com/timesridenetwork/
Twitter: https://twitter.com/TimesRide
Pinterest: https://in.pinterest.com/ride0472/
Thank You
#AwesomeLearningExperience
#SmartQuickTips&Tricks #LeaningVideos #TimesRide #Keep Learning to Keep Winning!
Basic Parts of a Desktop
This document discusses the parts of a desktop computer. It identifies five main parts: 1) program files/icons which launch programs and open files, 2) the start button which displays the start menu listing programs, 3) the taskbar at the bottom of the screen displaying open windows, 4) the time box showing the current time, and 5) the desktop which is the main working environment. The document provides examples and screenshots to illustrate these parts and their functions. Students are instructed to locate the parts using the mouse pointer and complete a short assignment identifying additional desktop parts and their functions.
Keyboard
This document provides an overview of keyboards, including their history and types. It begins by defining a keyboard as a device that uses an arrangement of buttons to correspond to written symbols. It then describes how a keyboard works, with a key matrix that sends signals to the computer processor. The document outlines the evolution of keyboards from the 1868 typewriter to developments in 1956-1981 with early computers. It introduced specialized command keys and standardized layouts. Finally, it briefly mentions the main types of keyboards such as standard, laptop, flexible and palm-sized varieties.
Input devices
Input devices allow data and instructions to enter a computer system. Common input devices include keyboards, pointing devices like mice, and scanning devices. Keyboards allow text entry and come in various styles. Mice, touchscreens, and other pointing devices control the computer's cursor. Scanners digitize physical documents and images using light sensors. Character and mark recognition devices digitally read special text formats.
What's hot (20)
Similar to Computer Lecture 2
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.
IO devices ppt
Here you can get details of input/output devices.
you can find the snaps of first version and latest version of i/o devices.
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.
Comp App Lect 5 part 2.pptx
Input devices capture information from the external environment and translate it into a form that can be processed by computers. Common input devices include keyboards, pointing devices like mice and trackballs, game controllers, scanners, styluses, microphones, digital cameras, and webcams. Trackballs are upside-down mice that rotate in place to move the cursor, requiring less workspace but more cleaning than mice. Touchpads and pointing sticks are found on laptops to control the cursor. Light pens, touch screens, styluses, graphic tablets, and pen-based devices allow entering information via touch. Voice recognition and handwriting recognition translate spoken words and handwriting into text.
Lecture 4
This document discusses input and output devices for computers. It describes keyboards, mice including mechanical and optical mice, and data scanning devices like image scanners. It then discusses various types of output devices including monitors, dot matrix printers that use pins to print, inkjet printers that spray ink through nozzles, and laser printers that use static electricity to print high quality pages.
Input and output devices
The document discusses various types of computer input and output devices. It describes keyboards, mice, scanners, joysticks, light pens, and other input devices used to communicate data and instructions to computers. Output devices discussed include monitors, printers, speakers, and projectors used to display or present the processed data to users. The key functions and characteristics of different input and output hardware are provided.
Input/Output Devices-Unit-3
The document discusses various input and output devices used in computers. It describes common input devices like the mouse, keyboard, trackball, joystick, light pen, microphone, digital camera, and scanner. It provides details on the different parts and functions of a keyboard. It also explains various output devices such as monitors, printers, plotters, disk drives, CD writers, and distinguishes between soft and hard copies.
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.
Grade ix input and output devices
This document discusses various input and output devices used in computing. It provides details on common input devices like the keyboard, mouse, joystick, scanner, microphone, touch screen and light pen. It also describes output devices such as the monitor, printer, plotter and touch pad. For each device, it explains what it is used for and some key features. It aims to inform the reader about the basic functions and workings of these essential I/O devices.
inputandoutputdevices-170914200150.pdf
This presentation discusses computer input and output devices. It defines input as instructions given to the computer for processing, and lists common input devices like the keyboard, mouse, microphone, scanner, and touchscreen. Output is defined as processed data that is useful information, and key output devices are identified as the monitor, speakers, and printer. Different monitor types like CRT and flat panel are described, as well as impact and non-impact printers.
Input and output devices
Danyal Ahmad presented to Prof Azhar Iqbal on input and output devices. The presentation defined input as instructions given to the computer for processing, and outlined common input devices like the keyboard, mouse, microphone, scanner, and touch screen. It defined output as processed data in a useful form, and described typical output devices such as monitors, speakers, and printers. Different monitor types like CRT and flat panel were explained, as were impact and non-impact printers.
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.
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.
INPUT OUTPUT MEMORY DEVICE.pdf
The document discusses various input, output, and memory devices used in computers. It describes keyboards as the most common input device used to enter data and mice as input devices that control cursor movement. Monitors and printers are discussed as main output devices that display and print output. Primary memory devices like RAM and ROM that interface directly with the CPU are volatile and non-volatile storage, respectively. Secondary memory provides larger but slower storage.
INPUT OUTPUT MEMORY DEVICE.pdf
The document discusses input and output devices used in computers. It describes common input devices like the keyboard, mouse, joystick, scanner, and optical mark recognition devices. It explains that the keyboard is used to enter text and numeric data using keys that generate ASCII codes. Mice are pointing devices that control cursor movement. Scanners are used to digitize printed text and images. Output devices discussed include computer monitors in different display technologies and printers, distinguishing between impact printers like dot matrix and line printers, and non-impact printers such as laser and inkjet printers.
Input output memory device
The document discusses various input, output, and memory devices used in computers. It describes keyboards as the most common input device used to enter data and mice as input devices that control cursor movement. Monitors and printers are discussed as main output devices that display and print output. Memory devices covered include RAM and ROM as primary memory and their types. Secondary memory is also briefly mentioned.
Input output memory device
The document discusses various input, output, and memory devices used in computers. It describes keyboards as the most common input device used to enter data and mice as input devices that control cursor movement. Monitors and printers are discussed as main output devices that display and print output. Memory devices covered include RAM and ROM as primary memory and their types. Secondary memory is also briefly mentioned.
Input devices and output devices of computer
This document discusses computer input and output devices. It defines input devices as devices that accept data from the user and lists common input devices like the keyboard, mouse, scanner, and magnetic ink card reader. It then discusses important output devices like computer monitors, printers (impact and non-impact), and describes their functions. The document also provides an overview of computer memory, including cache memory, primary memory, secondary storage, RAM and ROM.
Types of input-output devices
Input devices such as keyboards, mice, scanners, and touchscreens convert human instructions and data into a format computers can understand. These devices allow users to enter information and control the computer. Output devices like monitors, printers, and speakers take the processed data from computers and present it to users in a human-readable form such as displaying images or playing sounds.
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.
Similar to Computer Lecture 2 (20)
More from Moiz Barry
Thermosets
Thermosets are polymers that are cross-linked in a 3D network, giving them strength and hardness that is not affected by temperature changes. They undergo an irreversible polymerization reaction when heated and cured into a permanent shape. Some common thermosets include phenolics, melamines, epoxies, and copolymers. Thermosets have good mechanical and chemical properties as well as dimensional stability, making them useful for a variety of applications like pots, pans, flooring, and coatings. However, their production requires high temperature and pressure and they have limited processability once cured.
Rubber
Elastomers are polymers that display large elastic deformation when force is applied due to their low Young's modulus and ability to undergo segmental motion above their glass transition temperature. Elastomers are usually thermosets that are cross-linked during vulcanization, but may also be thermoplastics. Thermoplastic elastomers have properties of both plastics and rubbers, allowing potential recyclability. Fibers represent an important application of polymers and include nylon, polyester, rayon, and acrylic. Nylon and Kevlar fibers are used in bullet-proof vests due to their high tensile strength.
Plastics
Plastics are polymers that can be natural or synthetic. Their unique properties allow them to replace metals in many applications due to their high strength to weight ratio and ease of manufacturing. Plastics are generally cheaper than metal and weigh less, making them preferable for applications like vehicles. Common thermoplastics include acrylics, nylon, PVC, and polyethylene, which soften when heated and harden when cooled, allowing for reversible processing. Thermosets like phenolics cross-link during processing and set permanently. Additives are used to modify properties and reduce costs. Common applications of plastics include pipes, appliances, tools, and automotive and electronic parts.
Metallurgy--intro
The document discusses various materials used in industrial design and manufacturing including composites, metals, ceramics, polymers, and their properties. Composites combine materials for desired properties like strength and weight. Aluminum and fiber-reinforced polymers are increasingly used in place of steel for car bodies due to their lighter weight. Ceramics can withstand high temperatures and acids but are brittle. Metals, ceramics, and polymers each have distinct strengths and weaknesses for different applications. Fatigue and creep are material failure modes that must be considered.
S H E E T F O R M I N G
Sheet forming techniques are used to produce parts from sheet metal with a high surface area to thickness ratio. Common processes include bending, deep drawing, and shearing. Bending operations involve factors like bend radius, anisotropy, and springback. Deep drawing uses punches and dies to form flat sheets into shapes like cups with consistent wall thickness. Shearing separates metal using punches and dies, and burr height depends on factors like clearance and material ductility.
R O L L I N G
This document discusses rolling processes used to shape metals. It describes rolling as a bulk deformation process that reduces thickness or changes cross-section of a workpiece using compressive forces from rotating rolls. Hot rolling involves heating metal above its recrystallization temperature before rolling, allowing larger deformation and grain refinement. Cold rolling increases strength but reduces ductility, so heat treatment is often required after. The document provides details on advantages and limitations of both hot and cold rolling processes.
F O R G I N G & E X T R U S I O N
This document discusses various bulk deformation processes including forging and extrusion. It describes different forging techniques like open-die, closed-die, and impression-die forging. Extrusion involves forcing a heated billet through a die to produce a part. Key factors that affect forging and extrusion are discussed, such as die design, temperature, speed, and the extrusion ratio. Common defects and parts produced via these processes are also mentioned.
Metallurgy Casting
Casting involves pouring molten metal into a mold to create shapes. It is an economical process for producing complex shapes in a single piece, especially for low production runs or large products. Key factors that influence the casting process include solidification rate, flow of molten metal, heat transfer during cooling, and properties of the mold material. Proper gating system design is important to avoid defects from shrinkage and porosity during solidification as the metal cools and contracts.
Metallurgy P R O P E R T I E S And Definitions
Engineering concepts of metals document discusses various hardness testing methods like Brinell and Rockwell. It explains that hardness is the resistance to deformation and depends on factors like grain size and work hardening. The document also covers tensile stress, shear stress, heat treatment processes to alter material properties like hardening and softening, and concepts like modulus of rigidity and stiffness.
History--Egyptian civilization
The document provides an overview of ancient Egyptian civilization, including its surroundings, history, culture, art, and daily life. It describes Egypt's fertile geography along the Nile River which allowed for early settlements. Around 3000 BC, Egypt was unified under its first pharaoh. Egyptian culture was characterized by religious art depicting gods and pharaohs in a highly stylized and symbolic style, using simple lines, shapes, and colors. Materials like stone, copper, gold, and papyrus were widely used.
Computer Lecture 3
This document discusses how computers represent and process data. It explains that computers use binary numbers consisting of 1s and 0s to represent all data. It describes how bits are grouped into bytes to store individual characters. It outlines the main components of the CPU that process instructions, including the control unit and arithmetic logic unit. It differentiates between RAM, which is volatile memory used for active processing, and ROM, which is permanent memory that holds startup instructions. It also describes the role of cache memory in improving processing speed.
Computer Word Lec2
This document provides an overview of formatting text and paragraphs in Microsoft Word. It describes how to change font styles, sizes, colors and other text attributes using the formatting toolbar and menu options. It also summarizes how to use styles, indentation, borders, drop caps, columns and bulleted or numbered lists to format paragraphs. The clipboard and format painter tool are introduced as ways to copy and paste formatting between selections of text.
Computer Lecture 1
The document provides an overview of the key components of a computer system, including hardware, software, data, and users. It defines hardware as the physical parts of a computer like keyboards and monitors. Software consists of organized instructions that control the computer and enable it to perform tasks for users. Data refers to raw facts that are stored digitally and processed into useful information. Users are people who operate computers. It also describes different types of computers from supercomputers to microcomputers/personal computers.
History- Intro Lec 1
The document discusses the prehistoric age in Malaysia, dividing it into periods based on social activities and economic activities. The food gathering period from 100,000-10,000 BC involved simple stone tools. The hunting period from 10,000-3,000 BC saw tools made from animal bones. The neolithic period from 3,000-600 BC involved permanent settlement, cultivation, and stone tools that were smoother and sharper. The palaeometallic period from 600 BC-800 AD included the discovery of bronze artifacts made through metalworking.
Iron
Iron is an alloy that can be modified by adding other metals and carbon. It is most commonly used as steel. Pure iron is soft, so it is used in alloys like pig iron, cast iron, and wrought iron. Wrought iron has a low carbon content and is tough, malleable, and easily welded. Cast irons include white and gray cast iron and are brittle with a low melting point but good machinability. The properties of iron alloys depend on their chemical composition, especially carbon and alloying elements like manganese, silicon, and phosphorus. Iron alloys have a variety of mechanical properties and are widely used in construction, machinery, vehicles, and infrastructure due to their
P I D L E C 1
The document discusses the importance of selecting the right materials and manufacturing processes for product design. It provides examples of how material selection impacts the design of paper clips and aluminum foil. For paper clips, the material must have the right elasticity, strength, and stiffness to hold papers together without breaking. Aluminum foil thickness impacts its permeability and use in food packaging. The manufacturing processes of rolling, drawing, and anodizing are described for shaping these materials. Overall, understanding materials' properties and how they are transformed is key to good design.
Aluminum
- Aluminum is the most abundant metal in the Earth's crust and is a light-weight, non-toxic metal that can be easily machined or cast. It is strengthened through alloying with other metals.
- Aluminum is strong, corrosion resistant, conducts electricity and heat well, and is readily weldable. It provides greater strength than steel within a given weight budget.
- Aluminum reaches its endurance limit sooner than steel in terms of flexure but has good flexural strength and rigidity. It is non-sparking and non-ferromagnetic.
Titanic
On the night of April 14, 1912, the RMS Titanic collided with an iceberg in the North Atlantic Ocean and sank within hours. The iceberg struck the starboard side of the Titanic, damaging its hull and opening compartments to flooding. By 2:20 AM on April 15, the Titanic had sunk with the loss of over 1,500 lives. Debate ensued over who or what was responsible for the sinking, focusing on factors like the ship's speed in icy waters, the design of its watertight compartments, and the material used in its construction.
More from Moiz Barry (18)
Computer Lecture 2
- 16. The user can point, tap, draw and write on the computer’s screen with a pen.
- 17. TOUCH SCREEN
- 18. Bar code readers commonly track sales in retail stores
- 22. Projected Screen