COMPUTER MONITERS
THE FOUR GENERATIONS OF COMPUTERS
What are they ?
First Generation
The period of first generation : 1946-1959. Vaccum tube based.
Second Generation
The period of second generation : 1959-1965. Transistor based.
Third Generation
The period of third generation : 1965-1971. Integrated Circuit based.
Fourth Generation
The period of fourth generation : 1971-1980. VLSI microprocessor based.
Fifth Generation
The period of fifth generation : 1980-onwards.ULSI microprocessor based
First Portable Computer
The IMB 5100 is the first portable computer, which was released on September 1975. The computer weighed 55 pounds.
Different Gernerations
First Generation
1946-1959
Second Generation
1959-1965
Third Generation
1965-1971