Generations of Computer

Fourth Generation Computer

Duration: 1970 to till date


Used: Large and very large scale integrate circuit (LSIC AND VLSI)


Language: High Level Language (eg., SQL, RPG)


Example: APPLE II, Altair 8800, and CRAY-1.





(1) Practically maintenance -free.

(2) Small, affordable, reliable and easy-to-use.

(3) Easier to produce commercially.

(4) Less power requirement.

(5) Rapid software development possible.





(1) Complex software.

(2) Highly sophisticated technology required for manufacturing LSIC and VLSIC chips.


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