Computer
Types of Computer & Different Generations
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Types of Computer & Different Generations
Five Generation of Computer
Gene-ration |
Period* |
Main Electronic components |
Main Computers |
I |
1940-56 |
Electronic Valve Vaccume Tube |
EDSAC, EDVAC, UNIVAC |
II |
1956-64 |
Transistor |
IBM-700, IBM-1401, IBM-1620, CDC-1604, CDC-3600, ATLAS, ICL-1901 |
III |
1965-71 |
Integrated Circuit |
IBM-360, IBM-370, NCR-395, CDC-1700, ICL-2903 |
IV |
1971- Present |
Largely Integrated Circuit |
APPLE, DCM |
V |
Present & Future |
Optical Fibre, Artificial Intelligence |
__ |
* may vary according to university/organization. |
Programming Language of different generations
Generation |
Language |
1st Generation (1940-52) |
FORTRAN-i |
2nd Generation (1952-64) |
FORTRAN-ii, ALGOL-60, COBOL, LISP |
3rd Generation (1964-71) |
PL/ I, ALGOL-W, ALGOL-68, PASCAL, SIMULA-67, APL, SNOBOL, 4 BASIC, C |
4th Generation (1971 --) |
CLUE, ALFARD, UCLID, Reformed Pascal, MODULA, EDA, ORACLE |
5th Generation (For future) |
Artificial Intelligence Languages. |
Typed of Computer:
According to size and capacity these are following types of Computer –
1. Micro Computer:
These Computers are used by individual, thus also called PC or Personal Computer. These days PCs are largely used for domestic and official purpose etc.
2. Mini Computers:
This type of Computer is comparatively larger than that of micro Computer. This is 5 to 50 times more powerful than that of a Micro Computer.
3. Main Frame Computer:
These are large sized Computers. By Time Sharing and Multi techniques many people rather more than 100 people can work at a time on different terminals of this Computer.
4. Super Computer:
These are very powerful Computers and have more storage capacity. These are the most expensive and the fastest Computers, able to process most complex jobs with a very high speed.
5. Quantum Computer:
The development of this type is in final stage. Probably Quantum Computers will be more advanced than that of human brain. In Quantum Computers Q-Bit will be used in lieu of Binary Bits.
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