Wednesday, 2 March 2011

INPUT DEVICES

INPUT is any data and information that enter into a memory in a computer

TYPES OF DEVICE
  1. KEYBOARD
  2. MOUSE
  3. OPTICAL MOUSE
  4. TRACKBALL
  5. TOUCHPAD AND POINTING STICKS
  6. LIGHT PEN
  7. TOUCH SCREEN
  8. DIGITAL PEN
  9. GAME CONTROLLER
  10. MICROPHONE
  11. WEB CAM
  12. SCANNER
  13. BAR CODE READER
  14. BIOMETRIC DEVICE
  15. MAGNETIC STRIPE CARD READER

TYPES OF WEBSITES

  1. PORTAL
  2. NEWS
  3. INFORMATIONAL
  4. BUSINESS/MARKETING
  5. BLOG
  6. WIKIPEDIA
  7. ONLINE SOCIAL NETWORKS
  8. EDUCATIONAL
  9. ENTERTAIMENTS
  10. ADVOCACY

EXAMPLES OF COMPUTER USER

  1. HOME USER
  2. SOHO(SMALL OFFICES/HOME OFFICES USER)
  3. MOBILE USER
  4. POWER USER
  5. ENTERPRISE USER

COMPUTER APPLICATIONS IN SOCIETY

  1. EDUCATIONS
  2. FINANCE
  3. GOVERNMENT
  4. HEALTH CARE
  5. SCIENCE
  6. PUBLISHING
  7. TRAVEL
  8. MANUFACTURING

MOBILE COMPUTERS AND MOBILE DEVICES

  • NOTEBOOK COMPUTERS
    • TABLETS PC
  • MOBILE DEVICES 
    • SMART PHONES
    • PDA
    • HANDHELD COMPUTERS
    • PORTABLE MEDIA PLAYER
  •  DIGITAL CAMERAS

CATEGORIES OF COMPUTERS

1.PERSONAL COMPUTER
contains a processor, memory, input, output, and storage devices.

2.DESKTOP COMPUTER
system unit, input devices, output devices, and many other devices are fit entirely on or under a desk or table.

INFORMATION PROCESSING CYCLE

  • INPUT
  • PROCESS
  • OUTPUT
  • STORAGE
  • COMMUNICATIONS