Saturday, September 24, 2011

Basic Definitions of of computers

Basic Definitions of Computers
  • A computer is programming machine
  • Receive input through input devices
  • Process information through processing devices
  • Stores the information on storage devices
  • Provides output through output devices
Computer
            A machine that can receive and store information and change or process it .
            In other way a device that computes especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles,stores , correlates, or otherwise processes information.

Information
            Knowledge that is communicated.
DATA
            The representation of  information in a formulized manner suitable for communication, interpretation  and communication , processing generally by a computer system.
RAW DATA
            The  term RAW DATA used to refer unprocessed information
COMPUTER AND ITS PERIPHERALS
            An electronic device connected by cable to CPU of a computer
 i.e  Disk device and printers are important peripherals