Wednesday 2 March 2011

STORAGE

STORAGE is to hold data, instruction, information for a future used.

TYPES OF DEVICES
  1. INTERNAL HARD DISK
  2. EXTERNAL HARD DISK
  3. NETWORK ATTACHED STORANGE DEVICES
  4. MINIATURE HARD DISK
  5. SOLID STATE DRIVE
  6. MEMORY CARD
  7.   USB FLASH DRIVE
  8. EXPRESS CARD MODULE
  9. CLOUD STORANGE
  10. OPTICAL DISK
  11. SMART CARD
  12. MICROFILM
  13. MAGNETIC SMART CARD

OUTPUT DEVICES

OUTPUT is a data that has been process into a useful form to one or other people

TYPES OF DEVICES
  1. MONITOR
  2. PRINTER
  3. AUDIO
  4. VIDEO
  5. FAX

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