Desktop Computer : Topic 1

Desktop Computer : Topic 1

1. Use

   • Full size screen and keyboard
   • Used on desk
   • Used in one place

2. Main components

   • Central processing unit (CPU)
     • One or more microprocessors
     • Processes raw data
     • Turns data into information
   • Main memory
     • In chips
     • Holds program instructions
     • Holds data being processed
   • Motherboard
     • Central circuit board
     • Holds electronic components
     • Contains connectors
   • Sound card
     • Electronic circuit board
     • Can produce high quality sound
   • Video Card
     • Electronic circuit board
     • Allows the production of graphics
   • Input devices
     • Used to input data
     • Keyboard, mouse etc.
   • Output devices
     • Used to output information
     • Screen, printer etc.
   • Secondary/backing storage
     • Storage other than memory
     • Includes hard drives, CD/DVD drives