Input devices
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1. The document discusses various input devices used to enter data and instructions into a computer including keyboards, pointing devices like mice and trackballs, microphones, digital cameras, and scanners. 2. Keyboards are used to enter text and numeric data while pointing devices control the cursor on screen. Microphones input audio and digital cameras take pictures in digital form. 3. Scanners optically read printed images and text and convert them into electronic form for processing on computers.
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A input output device
This document discusses computer input and output devices. It describes various input devices like keyboards, mice, scanners and microphones that allow data and instructions to enter a computer. It also covers output devices such as monitors, printers and plotters that display or print data in human-readable form. Printers are divided into impact and non-impact types. The document provides details on the functioning and uses of different I/O devices.
Input and output devices ppt
Input devices capture information from the external environment and translate it into a format readable by computers. Common input devices include keyboards, pointing devices like mice and trackballs, game controllers, scanners, styluses, microphones, and digital cameras. Output devices take the information processed by computers and present it to users in a form they can understand, like monitors to display visual information and speakers to output audio.
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.
Input Output devices
The document discusses various input and output devices used in computer systems. It describes common input devices like the keyboard, mouse, trackball, joystick, light pen, touch screen, and scanners. It also covers output devices such as monitors, LCD displays, and printers including dot matrix, laser, and inkjet printers. The document provides details on how each device functions and its applications.
Input output devices
Input devices allow a user to input information into a computer and include mice, keyboards, MIDI keyboards, gamepads, trackballs, joysticks, scanners, trackpads, webcams, cameras, microphones, and graphic tablets. Output devices allow the computer to output information to the user and include monitors, speakers, printers, headphones, projectors, and plotters. Miscellaneous devices include printers with scanners, touch screens, headsets, video graphic cards, sound cards, fax machines, and modems.
OUTPUT DEVICES
This document provides information about output devices. It defines output devices as hardware that displays processed or stored computer data for users. Examples of output devices given include monitors, printers, speakers, projectors, and plotters. Their uses are described, such as monitors displaying instructions and results, printers producing hard copies, speakers converting sound, and projectors displaying information for large audiences. The document also lists objectives and pre-requisite skills around output devices.
Printers And Its Types
This document discusses different types of printers, including impact printers like dot matrix and daisy wheel printers, and non-impact printers like inkjet, thermal, and laser printers. It provides details on the technology and features of each type of printer, such as dot matrix printers using pins to strike ink ribbons and produce low quality output, while inkjet printers use nozzles to spray ink droplets in high resolution printing. The document also covers multi-function printers, plotters, and the importance of printers for utilizing computer resources.
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.
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A input output device
This document discusses computer input and output devices. It describes various input devices like keyboards, mice, scanners and microphones that allow data and instructions to enter a computer. It also covers output devices such as monitors, printers and plotters that display or print data in human-readable form. Printers are divided into impact and non-impact types. The document provides details on the functioning and uses of different I/O devices.
Input and output devices ppt
Input devices capture information from the external environment and translate it into a format readable by computers. Common input devices include keyboards, pointing devices like mice and trackballs, game controllers, scanners, styluses, microphones, and digital cameras. Output devices take the information processed by computers and present it to users in a form they can understand, like monitors to display visual information and speakers to output audio.
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.
Input Output devices
The document discusses various input and output devices used in computer systems. It describes common input devices like the keyboard, mouse, trackball, joystick, light pen, touch screen, and scanners. It also covers output devices such as monitors, LCD displays, and printers including dot matrix, laser, and inkjet printers. The document provides details on how each device functions and its applications.
Input output devices
Input devices allow a user to input information into a computer and include mice, keyboards, MIDI keyboards, gamepads, trackballs, joysticks, scanners, trackpads, webcams, cameras, microphones, and graphic tablets. Output devices allow the computer to output information to the user and include monitors, speakers, printers, headphones, projectors, and plotters. Miscellaneous devices include printers with scanners, touch screens, headsets, video graphic cards, sound cards, fax machines, and modems.
OUTPUT DEVICES
This document provides information about output devices. It defines output devices as hardware that displays processed or stored computer data for users. Examples of output devices given include monitors, printers, speakers, projectors, and plotters. Their uses are described, such as monitors displaying instructions and results, printers producing hard copies, speakers converting sound, and projectors displaying information for large audiences. The document also lists objectives and pre-requisite skills around output devices.
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This document discusses different types of printers, including impact printers like dot matrix and daisy wheel printers, and non-impact printers like inkjet, thermal, and laser printers. It provides details on the technology and features of each type of printer, such as dot matrix printers using pins to strike ink ribbons and produce low quality output, while inkjet printers use nozzles to spray ink droplets in high resolution printing. The document also covers multi-function printers, plotters, and the importance of printers for utilizing computer resources.
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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.
Output devices of Computer
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This document defines and describes different types of computers and their components. It explains that a computer receives input, processes it according to instructions, and provides output. It then defines supercomputers, mainframes, mini-computers, personal computers, and laptops. The document also discusses computer networks, hardware including input, output, and storage devices, and software including operating systems and applications.
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This document discusses input and output devices. It describes several major input devices including the keyboard, mouse, joystick, optical mark reader, light pen, bar code reader, and magnetic ink character reader. It then discusses various output devices such as monitors, printers (including impact printers like dot matrix printers and non-impact printers like inkjet and laser printers), speakers, plotters, and multimedia projectors. The document provides details on the purpose and functioning of these common input and output hardware devices used with computers.
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This document provides an introduction and history of computers. It defines what a computer is and who a user is. It discusses data and information and how information technology uses computers. It then outlines the history of computers from mechanical computers in the 1600s to modern electronic computers. It describes the four generations of electronic computers from vacuum tubes to microprocessors. It concludes by defining types of computers like analog and digital and classifying computers such as supercomputers, mainframes, workstations, servers, desktops, laptops and palmtops.
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The document provides an introduction to computers including definitions, components, and uses. It defines a computer as an electronic device that can accept data as input, process the data, and produce information as output based on stored instructions. The key components are identified as the input devices, central processing unit, memory, output devices, and storage devices. Examples of input devices include keyboards, mice, and scanners, while monitors and printers are identified as common output devices. The document then discusses the various types of computers from microcomputers to mainframes and supercomputers as well as their characteristics and uses.
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This document provides an overview of common computer input and output devices. It describes keyboards, pointing devices like mice and touchpads, scanners, cameras, microphones and sensors that serve as inputs. As outputs, it outlines monitors, projectors, speakers, printers like inkjet and laser printers, and actuators such as motors, pumps and buzzers that can control real-world devices. Input devices convert real-world data to digital signals for computers, while output devices take computers' digital outputs and display or actuate them in the physical world.
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The document discusses the history and components of the central processing unit (CPU). It describes how the CPU originated from concepts developed in the 1940s and evolved from large mainframe computers to smaller microprocessors. The key components of the CPU are the control unit, arithmetic logic unit, and memory unit. The CPU functions by fetching instructions from memory, decoding and translating them, executing calculations and data movement, and storing results.
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This document discusses input and output devices for computers. It describes keyboards, mice, and other pointing devices as common input devices for entering data, software, and commands. It also discusses monitors, printers, and other devices as output mechanisms for displaying and printing processed data in text, graphic, audio, and video formats. The mouse is highlighted as the most widely used pointing device for selecting on-screen items.
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The document outlines 5 categories that make up the basic parts of a computer: input devices, system unit, secondary storage devices, output devices, and communication devices. It describes common devices that fall under each category such as the keyboard, mouse, CPU, memory, floppy disk, hard disk, monitor, printer, modem, and network interface card. The purpose and functions of these basic computer parts are also explained.
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The major functions of a computer system are input, storage, processing, and output. Input devices like keyboards and mice are used to enter information into the system for storage before or after processing by the CPU. The processed information is then output through devices such as monitors, speakers, or printers.
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Input and output devices allow users to interact with computers. Common input devices include keyboards and mice which allow users to enter text and select items. Output devices such as monitors display information and printers produce hard copies. Storage devices like hard drives, CDs, DVDs, and USB drives are used to save data on the computer.
Computer basics
This document defines and describes different types of computers and their components. It explains that a computer receives input, processes it according to instructions, and provides output. It then defines supercomputers, mainframes, mini-computers, personal computers, and laptops. The document also discusses computer networks, hardware including input, output, and storage devices, and software including operating systems and applications.
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The document discusses the central processing unit (CPU). It describes the CPU as the multipurpose, programmable component of a computer that interprets instructions and performs logical and arithmetic operations. The CPU is composed of an arithmetic logic unit (ALU) that performs calculations, a control unit (CU) that directs signals between memory and the ALU, and register arrays that temporarily store processed data. Factors like clock rate, memory size, and instruction set complexity can impact a CPU's processing speed. The CPU executes a cycle of fetching instructions from memory, decoding them, executing operations, and storing results.
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The document discusses various input devices used to input data and instructions into computers. It describes keyboards, mice, joysticks, touch screens, microphones, scanners, and bar code readers. Keyboards are the most commonly used input device and come in normal and multimedia varieties. Mice can be traditional ball mice or newer optical mice. Scanners convert printed images to digital form, and can be flatbed or handheld models.
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Input Devices
The document discusses different types of input devices used in computer systems. It describes keyboards, pointing devices like mice, and other input methods. Keyboards allow users to manually enter text and commands into computers. Mice and other pointing devices allow users to interact with graphical user interfaces by selecting icons and menus. The document categorizes and describes various keyboards layouts and types of mice, including mechanical, optical, wired, wireless, and those with different numbers of buttons. It provides details on how these common input devices work and interface with computer systems.
CSC1100 - Chapter03 - Input
This document discusses various types of computer input devices. It defines input and describes common input methods like keyboards, mice, touchscreens, scanners, cameras, and biometric devices. It explains how these devices work and are used for tasks like data entry, navigation, document scanning, video/photo capture, and identity verification. The document is intended to help students understand the characteristics and functionalities of basic computer hardware input components.
Computer System
The document discusses computer system input, output, and storage devices. It describes common input devices like keyboards and mice, as well as other input devices such as scanners, cameras, and voice recognition. Output devices discussed include monitors for visual output and printers for hard copies. Storage media include magnetic, optical, and solid-state devices. Input and output devices connect to computers physically or wirelessly to transfer data in and out.
78 identify input and output devices
Input and output devices allow interaction between users and computers. Key input devices include keyboards for typing, mice for pointing and selecting, and touchscreens for touch-based input. Key output devices include monitors for visual output, printers for printed output, and speakers for audio output. The document then provides details on the functions of keyboards, mice, monitors, printers, modems, scanners, speakers, digital cameras, and other input/output devices.
78 identify input and output devices
Input and output devices allow interaction between users and computers. Key input devices include keyboards for typing, mice for pointing and selecting, and touchscreens for touch-based input. Important output devices are monitors for visual output, printers for printed output, and speakers for audio output. Input devices like scanners and digital cameras allow converting real-world objects and images into digital data, while output devices like printers and monitors display or print that digitized information.
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The document discusses computer system hardware input, output, and storage devices. It describes common input devices like keyboards, mice, touchscreens, and microphones. Output devices mentioned include monitors, printers, and speakers. Storage devices covered are magnetic drives, optical discs, solid state drives, and removable media like USB drives. The document also discusses how input/output devices connect to computers and tips for caring for storage media.
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This document discusses various input and output devices used with computers. It describes keyboards, mice, touch screens, stylus, and other pointing devices as common input devices. Examples of output devices mentioned include monitors and printers. Pointing devices like mice and touchpads are used to select and manipulate objects on screen. Keyboards allow text and command input through keys. Styli are pen-like tools that can be used for writing or tapping on touch screens. Digital forms can also be filled using a stylus and converted to text.
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Input devices
- 1. Input Devices of Computer Presented by Ch. Abdul Manan
- 2. Learning Outcomes Students can 1. tell the name of input devices 2. Indentify the input devices 3. tell the function of different input devices
- 3. Definition of Input Devices The devices which are used to enter data and instructions into the computer are called input devices.
- 4. Names of Input Devices 1. Keyboard 2. Pointing Devices i) Mouse ii) Trackball iii)Track pad iv) Joystick v) Light pen vi) Digitizer 3. Microphone 4. Digital Camera 5. Digital Scanner
- 8. Keyboard It is used to enter text and numeric type data. Some special keys used to perform special functions. The buttons on the keyboard are called keys. The standard keyboard is Q,W,E,R,T,Y Keyboard
- 9. Pointing Devices A pointing device is an input device that is used to control a cursor. For Example: Mouse, Trackball, Touchpad, Joystick, Light Pen, Digitizer
- 10. Computer Mouse
- 11. Mouse It is used to o control the cursor or pointer. o give commands to the computer o create graphics
- 12. Trackball
- 13. Trackball • It performs functions like mouse • A stationary device • Moveable ball on its top • The ball is rotated or rolled with fingers or palm • The ball is used to control movements of pointer • Trackball also has buttons used send commands • No need of flat surface
- 14. Track pad / Touch pad It is a pressure sensitive pointing device Stationary device It has no moving parts A small, flat surface We slide our fingertip to move pointer Pointer moves on the screen Some Touch pads has buttons near the surface Commonly used with portable computer It can also attached with keyboard Built in keboards
- 15. Track pad / Touch pad
- 16. Joystick o It consist of a vertical handle o Like gearshift lever mounted on a base o One or two buttons o Vertical handle used to control movements of pointer o Buttons of joysticks are pressed to activate the certain event or action o Video games and CAD
- 17. Joystick
- 18. Light Pen PDA
- 19. Light Pen It is a handheld pointing device A light sensitive device or pen like device It is connected to a computer by a wire A photocell on its front end When front of the photocell touched with the monitor screen, it detects a position on display screen The has a button; to select and press PDA and other handheld devices
- 20. Digitizer
- 21. Digitizer / Graphic Tablet A flat, rectangular, electronic board Each location on the digitizer points to corresponding position on the computer screen Used to make drawings and maps Stylus and Puck (cursor) are used to trace drawings and sketches Digitizer converts the movements of stylus and puck into digital signals that are sent to computer Easy to enter freehand drawing into computer
- 22. Microphone
- 23. Microphone Audio input device Use to enter / record sound into computer Main Purpose to provide digital input for multimedia
- 24. Digital Camera
- 25. Digital Camera It is used to take pictures in digital form Uses a light sensitive processor chip Chip capture photographic images in digital form These images are stored in a small diskette or flash memory chip Then image are loaded into computer for further processing
- 26. Digital Scanner
- 27. Digital Scanner / Optical Scanner Light sensitive input device It reads images and text printed on the paper The translates into electronic form That can be processed and stored by computer It uses Laser technology to scan the images