Chapter 05

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Chapter 05

  1. 1. Chapter 5BTECH1101 | Fundamental of Computer Systems Prepared by Mohamed Abdulkarim
  2. 2. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsChapter 5 Objectives List the characteristics of a keyboard Summarize how these pointing devices work: mouse, trackball, touchpad, pointing stick, light pen, touch screen, stylus, digital pen, and gaming and media player controllers Describe other types of input, including voice input; input devices for PDAs, smart phones, and Tablet PCs; digital cameras; video input; scanners and reading devices; terminals; and biometric input ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  3. 3. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsWhat Is InputWhat is input? Data or instructions entered into the memory of computer Input device is any hardware component that allows users to enter data and instructions ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  4. 4. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a keyboard? Input device that contains keys users press to enter data into a computer Includes typing area, function keys Can be cordless or built-in ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  5. 5. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a mouse? Pointing device that fits under the palm of your hand  Pointing device controls movement of pointer Mechanical mouse has rubber or metal ball on its underside ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  6. 6. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is an optical mouse? No moving mechanical parts inside Senses light to detect mouse’s movement More precise than mechanical mouse More expensive than a mechanical mouse ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  7. 7. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a trackball? Stationary pointing device with a ball on its top or side To move pointer, rotate ball with thumb, fingers, or palm of hand ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  8. 8. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat are a touchpad and a pointing stick? Touchpad is small, flat, rectangular pointing device sensitive to pressure and motion Pointing stick is pointing device shaped like pencil eraser positioned between keys on keyboard ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  9. 9. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a light pen? Handheld input device that can detect the presence of light  Press light pen against screen surface and then press button on pen ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  10. 10. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a touch screen? Touch areas of screen with finger Often used with kiosks ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  11. 11. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsKeyboard and Pointing DevicesWhat is a digital pen? Looks like a ballpoint pen, but uses pressure to write text and draw lines Used with graphics tablets, flat electronic boards ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  12. 12. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsGaming and Media Player ControllersWhat are the types of game controllers? Gamepad Joystick Wheel Light gun Dance pad Motion-sensing game controller ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  13. 13. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsGaming and Media Player ControllersWhat is a touch-sensitive pad? Input device on a portable media player that enables users to scroll through and play music, view pictures, watch videos or movies, adjust volume, and customize settings  Click Wheel ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  14. 14. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is voice input? Entering input by speaking into a microphone Voice recognition or speech recognition is the computer’s capability to distinguish spoken words ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  15. 15. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is audio input? Entering sounds into a computer - speech, music, and sound effects MIDI - standard defining how digital musical devices represent sound electronically ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  16. 16. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputHow is data entered into a PDA? ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  17. 17. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a smart phone? Users can input and send text messages, graphics, pictures, video clips, and sound files ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  18. 18. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a Tablet PC? Mobile computer Primary input device is a pressure- sensitive digital pen ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  19. 19. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a digital camera? Allows you to take digital pictures Images viewable immediately on camera  Download to computer  Post pictures to Web ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  20. 20. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is video input? Process of capturing full-motion images and storing them on a computer’s storage medium  Digital video (DV) camera records video as digital signals ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  21. 21. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a PC video camera and a Web cam? PC video camera - Digital Video camera used to capture video and still images, and to make video telephone calls on Internet  Also called PC camera Web cam - video camera that displays its output on a Web page ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  22. 22. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is video conferencing? Two or more geographically separated people who use a network or the Internet to transmit audio and video data ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  23. 23. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a scanner? Light-sensing device that reads printed text and graphics  Used for image processing, converting paper documents into electronic images ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  24. 24. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a turnaround document? Document that you return to the company that sent it  Portion you return has information printed in OCR characters ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  25. 25. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is an optical reader? Device that uses light source to read characters, marks, and codes and then converts them into digital data  Optical character recognition (OCR) reads typewritten characters  Optical mark recognition (OMR) reads hand-drawn pencil marks, such as small circles  Bar code reader ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  26. 26. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is an RFID reader? Reads information on the tag via audio waves  Can be handheld devices or mounted in a stationary object ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  27. 27. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a magnetic stripe card reader? Reads the magnetic stripe on the back of a credit card Exposure to a magnetic field can erase the contents of a card’s magnetic stripe ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  28. 28. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a magnetic-ink character recognition (MICR) reader?  Can read text printed with magnetized ink  Banking industry almost exclusively uses MICR for check processing ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  29. 29. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is a point of sale (POS) terminal? Records purchases, processes credit or debit cards, and updates inventory ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  30. 30. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is an automated teller machine (ATM)? Self-service banking machine that connects to a host computer through a network ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  31. 31. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat is biometrics? Authenticates person’s identity by verifying a personal characteristic  Fingerprint scanner captures curves and indentations of a fingerprint ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  32. 32. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer SystemsOther Types of InputWhat are examples of biometric technology? Voice verification system compares live speech with stored voice pattern Signature verification system recognizes shape of signature Iris recognition system reads patterns in blood vessels in back of eye  Biometric data is sometimes stored on smart card, which stores personal data on microprocessor embedded in card ALL RIGHTS RESERVED No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide
  33. 33. Faculty of Information and Communication Technology BTECH1101 | Fundamental of Computer Systems End of Lecture ALL RIGHTS RESERVEDNo part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide

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