Computers Generation

(1951-1959)
UNIVAC 1 (universal automatic computer)
The first generation of computer that use vacuum tube develop by Mauchly and Eckert.
It was installed in a US Bureau in 1951.

(1959-1964)
The Honeywell 400
The second generation of computer that using transistor signaled .Computer more powerful,reliable,less expensive , less space ,less heat than vacuum tubes when transistorized.

(1964-1971)
The IBM system 360
The third generation of computer that built around integrated circuits and offering compatibility.

(1969)
Microprocessor

(1971)
Integrated Circuits
The fourth generation of computer that introduce of large scale integration electronic circuitry.

(1977)
The Apple 2
Built by Steven Jobs and Steve Wozniak in jobs garage.

(1981)
IBM PC