The document traces the development of computers from 1951-present. It describes key developments like the vacuum tube (1951), the UNIVAC computer (1951), the transistor (1959-1964), the integrated circuit (1964-1970), the microprocessor (1971), the IBM PC (1981), the Apple II (1977), supercomputers like the Cray 1 (1976), and advances like very large scale integration circuits, the Blue/L supercomputer, and research into fifth generation computers involving artificial intelligence.

1. GENERATION OF
COMPUTER

2. It was made in (1951-1959)
The vacuum tube is an electronic tube (about size of
a light bulb) from which essentially all air has
been removed, creating a vacuum. It was also
used to build radios.

3. It was made in 1951
The first UNIVAC (universal automatic
computer)developed Mauchly and Eckert it was
first used by US bureau of census.

4. It was made in (1959-1964)
Transistors enable computer designers to build
circuits in smaller spaces and run them on much
less electricity.

5. It was made in (1964-1970)
The IC(integrated circuit)is a complete electronic
circuit which was made by Kilby and Robert. it is
made of square silicon sides 5mm (1/8inch) in
diameter

6. It was made in 1971
A microprocessor is an integrated circuit that
contains thousands of transistors. Modern
microprocessors contain more than 10 million
transistors.

7. Computers built with microprocessors are called
microcomputers (or home computers or personal
computers).

8. It was made in 1981
IBM entered the microcomputer business and
introduced the IBM PC which used the 4.77MHz
intel 8088 microprocessor.

9. It was made in 1977
Two young computer enthusiasts, Steven Paul Jobs
and Stephen Wozniak (then 21 and 26 years of age)
built apple11 in 1976 the first computer circuit
board.

10. The VSLI(very large-scale integrated)circuits
brought about the development of a special family
of high-capability machines known as the super
computers.

11. It was made in 1976
The Cray 1 was the super computer design by
Seymour Cray of Cray research in Eagan,
Michigan. It was the first computer capable
performing over 100million calculation per
seconds.

12. The fastest supercomputer in the world is IBM
Blue/L
It is a revolutionary, low cost machine delivering
extraordinary computing power located in the
terascale simulation facility of Lawrence
Livermore national laboratory, California for
scientific simulation and for evaluating advanced
computer architectures.

13. The term fifth was coined by Japan to indicate the
next generation of computers which had been
planed to be created in the mid-90s
Researches had been made on the generation area
of AI (artificial intelligence).