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Assignment: Midhunkrishna M R Commerce Department Roll No 194 Reg No Pnatbcm053

The document summarizes the history of computers through five generations: First generation computers (1946-1959) were large, limited to basic calculations, and used vacuum tubes. Second generation computers (1959-1965) were more reliable and used transistors, making them more compact. Third generation computers (1965-1971) used integrated circuits, making them even smaller and more reliable. Fourth generation computers (1971-1980) used microprocessors and VLSI technology, leading to the development of personal computers. Fifth generation computers (present) are the most advanced, employing technologies like artificial intelligence.

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88 views3 pages

Assignment: Midhunkrishna M R Commerce Department Roll No 194 Reg No Pnatbcm053

The document summarizes the history of computers through five generations: First generation computers (1946-1959) were large, limited to basic calculations, and used vacuum tubes. Second generation computers (1959-1965) were more reliable and used transistors, making them more compact. Third generation computers (1965-1971) used integrated circuits, making them even smaller and more reliable. Fourth generation computers (1971-1980) used microprocessors and VLSI technology, leading to the development of personal computers. Fifth generation computers (present) are the most advanced, employing technologies like artificial intelligence.

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Deva T N
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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ASSIGNMENT

MIDHUNKRISHNA M R
COMMERCE DEPARTMENT
ROLL NO 194
REG NO PNATBCM053
HISTORY OF COMPUTER
A computer is basically an electronic machine that can process information.
However, the “process” could be anything. For example, it could be the
addition or any other arithmetic operation. Otherwise, it could be just the
instruction to group a given set of data or to ungroup it. Today’s computers
have the power to carry out billions of calculations in a second and return
results that are very accurate and reliable.

First Generation
Computers developed between 1946–1959,are the first generation of
computers. They were large and limited to basic calculations. They consisted
of large devices like the vacuum tubes. The input method of these computers
was a machine language known as the 1GL or the first generation language.
The physical methods of using punch cards, paper tape, and magnetic tape
were used to enter data into these computers.

Second Generation
Computers developed between 1959-1965 the second generation computers.
These computers were more reliable and in place of vacuum tubes, used
transistors. This made them far more compact than the first generation
computers. The input for these computers were higher level languages
like COBOL, FORTRAN etc. In these computers, primary memory was stored
on the magnetic cores and magnetic tape and they used magnetic disks as
secondary storage devices.
Examples of the second generation computers include IBM 1620, IBM
7094,CDC1604,CDC 3600,UNIVAC1108.

Third Generation
Computers developed during the period of 1965 – 1971, the third generation
of computers. These computers differed from the first and the second
generations simply by the fact that a new circuit element like IC’s (Integrated
Circuits) was used. An integrated circuit is a small device that can contain
thousands and thousands of devices like transistors, resistances .Jack Kilby is
credited with the invention of the Integrated Circuit or the IC chips. With the
invention of IC’s, it became possible to fit thousands of circuit elements into a
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small region and hence the size of the computers eventually became smaller
and smaller.
Another salient feature of these computers was that they were much
more reliable and consumed far less power. The input languages for such
computers were COBOL,FORTRAN-II up to FORTRAN-
IV,PASCAL,ALGOL-68,BASIC,etc.

Fourth Generation
Fourth Generation of computers was between 1971–1980.These
computers used the VLSI technology or the Very Large Scale Integrated
(VLSI) circuits technology. Therefore they were also known as the
microprocessors. Intel was the first company to develop a microprocessor. The
first “personal computer” or PC developed by IBM, belonged to this
generation. VLSI circuits had almost about 5000 transistors on a very small
chip and were capable of performing many high-level tasks and computations.
These computers were thus very compact and thereby required a small amount
of electricity to run.

Fifth Generation
Fifth Generation is the present generation of computers and is the most
advanced one. The generation began somewhere around 1981 and is the
present generation of computers. The methods of input include the modern
high-level languages like Python, R, C#, Java etc. These are extremely
reliable and employ the ULSI or the Ultra Large Scale Integration technology.
These computers are at the frontiers of the modern scientific calculations and
are used to develop the Artificial Intelligence or AI components that will have
the ability to think for themselves.

Thank you
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