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Sunday, 9 February 2020

Today computers...?



Today computers:-






Generations of Computer:

1st Generation(1945-1950)
Made up of vacuum tube.
ENIAC, MARK 1 MARK II
Very slow expensive and 
                                      large




2nd Generation: 
(1950-1959)

Made up of Transistors instead of vacuum tube.
Small and less expensive as compared to 1st generation.
E.g. EDVAC and IBM 1401





3rd Generation:
 (1960-1969)

Made up of ICs. (integrated circuit)
IC is a small chip having hundred of transistors on it.
High in speed.
Low in price.



4th Generation Computers: (1970-1980)
Large scale integration.
Thousands of transistors on single chip.
Also called micro processor
Example is
IBM PC




Fifth Generation Computers: (1980  on wards)

Computers that can think and work like human.
Computers having intelligence called AI.
E.g. robots used in large industries.




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