generation of computer

2. Generation
of Computer
First
Generation
Second
Generation
Third
Generation
Fourth
Generation
Fifth
Generation

4.  The computers that developed from
1942-1956 where called the first
generation computers.
 The first generation computers used
vacuum tubes technology consists of a
glass bulb and wire. The wire is used to
carry data in the form of electronic
signals.
 They were used very large numbers of
vacuum tubes.
 The first generation computer were very
large, expensive and require huge
amount of electricity

6.  The second generation computer
developed between 1956-1963 .
 The second generation computer were
used transistor instead of vacuum tubes.
 As transistor are smaller than vacuum
tubes, the computer became much
smaller in size. They also became faster
and cheaper.
 While first generation computer were
programmed using machine language,
second generation computer moved
forward symbolic or assembly language
which allowed programmers to specific

8.  1964-1971 was period of the third generation
computer
 Integrated circuit was introduced during the
developed of the third generation computers.
 An integrated circuit (IC) is small has a
transistor. It can work as fast as thousands of
them.
 This generation computer used less
electricity and made fewer mistake.
 Integrated circuit made computers faster,
cheaper and smaller that the second
generation computers.

10.  The computers developed between
1972-1989 are called fourth generation
computer.
 Use of very large scale integration
(VLSI).
 Invention of micro computer and
introduction of personal computer (PC).
 The fourth generation computers are
smaller, portable and cheaper. They use
less electricity and produce less heat.
 During this period many new operating
systems were developed like MS DOS,
MS WINDOWS, LINIX and APPLES

12.  The computers developed between 1990 to
present age known as fifth generation computer.
 The fifth generation computer are completely
based on a new concept of a artificial
intelligence.
 These are the most advanced computer.
 Scientists are new trying to developed fifth
generation in artificial intelligence (AI) Robot
work on this technology .
 Although such computer are still in development
these are certain application like voice
recognition which is widely being used today.
 The two most common are LISP and PROLOG.