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• RAM

  • Random Access Memory
• RAM

  • ·         Main store where programs are stored.
• CPU fetches program instructions from RAM.
• CPU stores calculation results in RAM.
• In RAM, Volatile memory, contents erased when computer is switched off.
• ROM

  • Read Only Memory
• ROM

  • the information is burnt (pre-recorded) into the ROM chip at manufacturing time
• In ROM,Data cannot be erased but can be read.
• ROM

  • Contents remain stored permanently when computer is switched off.
• Input

  • Raw information entered into a computer from the input devices.
• Output

  • The processed data given by the computer after data processing.
  • Also called as Result
• Results can be saved in storage devices for future use
• Output is the function that allows a computer to display information, from the system, for the use
• Processing

  • Where the computer actually does the 'work' - manipulating and controlling data over the entire system.