Thursday, October 23, 2014

Learning About Peripherals

Peripherals: devices used for computer input and output
Keyboard
  • Computer keyboard reports each key press to a program that can interpret the keystrokes
  • A keyboard gives commands to the operating system of a computer
Mice
  • Mice can use either optical or laser technology (USB wireless optical mouse or trackball mouse)
Monitors
  • Two types: LCD monitor and CRT monitor
  • Many games and videos need a high-definition (HD) monitor
  • HD monitors have a clearer picture because they have better resolution
  • Pixels are the smallest colored dot that can be displayed on the computers screen
  • The more pixels you have the more detail you can see
Printers and Scanners
  • They add value by allowing a form of export
Drives
  • Over the years drives have changed considerably
  • External drives have more storage options for the users
Tower Cases
  • Usually have one bay at least for an optical drive (DVD or Blu-ray drive)
  • Different types and sizes of drives can all be loaded into the same tower case 
Peripherals Necessary For Dream Computer
  • Keyboard
  • Mouse
  • Monitor
  • Printer
  • Scanner
  • Storage drives
  • Game controllers/joysticks

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