First Computer:

(ENIA) Stand For 

Electronic Numerical Integrator 

And Calculator 

Design By: John Mauchly 



J. Prosper 




Weight 30 Tons.

Developed in 1946

2000 Vacuum tube 


Generation of Computer:

  1. First Generation

1946 - 1956 Technology used vacuum tube 

  1. Second Generation

1956 - 1965 Transistor 

  1. Third Generation

1965 - 1971 Integrated 

  1. Fourth Generation

1971 - 1986 Microprocessor 

  1. Fifth Generation

1986 - Present AI { ULSI