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What is computer? Characteristic of 3rd and 4th Generation computer.



Answer:
Computer:A computer is generally defined as a programmable machine. 


Characteristic of 3rd and 4th Generation computer:
Generation
Third Generation
Fourth Generation
Generation Period
1964-1975
1975-1990
Hardware features
MSI technologies,
Minicomputer, Uses of monitor.
IC with VLSI
Microprocessor
Software Features
Time sharing operating system.
High-level programming language.
WINDIOWS
UNIX operating system
Others Features
Faster, smaller, more reliable.
Easier to upgrade.
Smaller, reliable and easy to use.
Easier to produce commercially.
Examples
IBM 360/370, PDP-8, PDP-11
IBM PC and its clones, Apple II,
CRAY-1.CRAY-2


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