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
5.
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
7.
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.
9.
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
11.
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.
