chap

1. Chapter 5
BTECH1101 | Fundamental of Computer Systems
Prepared by Mohamed Abdulkarim

2. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Chapter 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
What Is Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Keyboard and Pointing Devices
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Gaming and Media Player Controllers
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Gaming and Media Player Controllers
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
How 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
Other Types of Input
What 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. Faculty of Information and Communication Technology
BTECH1101 | Fundamental of Computer Systems
End of Lecture
ALL RIGHTS RESERVED
No part of this document may be reproduced without written approval from Limkokwing University of Creative Technology Worldwide