COMPUTER – Common Operating Machine Particularly Used for Trade, Education, and Research. 

Technically, the term does not have any full form. Computer is essentially derived from the word ‘compute’, which basically means ‘calculate’. It is a device which can be programmed to do a set of logical or  arithmetic operations. Programs are a set of instructions which enable  them to execute the operations. In simple words, Computer receives  information or data, performs certain operations as per the program and  gives the result to the user as an output.

There are many types of COMPUTER :

  • Micro Computers
  • Mini Computers
  • Notebook Computers
  • Personal Computers
  • Mainframe Computers
  • Super Computers
  • Workstations

Parts of COMPUTER :

  • Processor
  • Motherboard
  • Memory

Basic Units of COMPUTER :

  • Input Unit
  • Output Unit
  • Arithmetic & Logic Unit ( ALU )
  • Control Unit
  • Central Processing Unit ( CPU )