Definition of computer

         

1.    what is computer :- computer is an electronic device, which convert data into  information.

     2. what is data :- row, facts, known as data.

GENERATION OF COMPUTER

•  1^s Generation – (1945-55) Vacuum tubes.
• 2^nd Generation – (1956-65) Transistor.
• 3^rd Generation – (1966- 75) IC’S (integrated circuit). 
•  4^th Generation – (1976-1980) microprocessor.
•  5^th Generation – (1980- ….) Advanced microprocessor.

WHAT IS PRINCIPAL OF COMPUTER