Charles Babbage invented early computers but failed to build them. Claude Shannon founded information theory and Alan Turing made major contributions to computer science and artificial intelligence. John Von Neumann made important contributions to mathematics, physics, and artificial life. William Shockley, Douglas Engelbert, Robert Noyce, Steve Wozniak, Grace Hopper, and Vint Cerf all made seminal contributions to the development of computers and the Internet through inventions like the transistor, mouse, microchip, Apple I computer, computer programming, and TCP/IP protocols.

1. PRESENTED BY: CHRISTIAN B.GABUYA

2. • Who are the men behind computer?
• What are there contribution?

3. CHARLES BABBAGE

4. CLAUDE SHANNON

5. ALAN TURING

6. JOHN VON
NEUMANN

7. WILLIAM
SHOCKLEY

8. DOUGLAS ENGELBERT

9. ROBERT NOYCE

10. STEVE WOZNIAK

11. GRACE MURRAY HOPPER

12. VINT CERF

14. Charles Babbage
He invented computers but failed to build them.
The first complete Babbage Engine was completed
in London in 2002, 153 years after it was designed.

15. Claude Shannon
Shannon is noted for having
founded information theory with
a land mark paper, A
Mathematical Theory of
Communication, that he
published in 1948.

16. Alan Turing
who made major contributions
to mathematics, cryptanalysis, logic, philosophy,
and mathematical biology and also to the new
areas later named computer science, cognitive
science, artificial intelligence, and artificial life.

17. John Von Neumann
He made important contributions to
mathematics, physics, computer
science, and the area of artificial life.
He was born in Budapest, Hungary, on
28 December 1903. His mother was
Margit von Neumann and his father was
Max von Neumann.

18. William Shockley
A Nobel Prize for his development of
point-contact transistors, work that
provided the basis for one of the
sweeping technological revolutions of
the twentieth century. His junction
and field-effect transistors became
workhorses of the electronics industry.

19. Douglas Engelbert
is most celebrated for his role in
inventing the mouse (along with his
lead engineer at the Stanford
Research Institute, Bill English, who
fashioned the first mouse prototype).

20. Robert Noyce
was an American physicist who co-
founded Fairchild Semiconductor in 1957
and Intel Corporation in 1968. He is also
credited (along with Jack Kilby) with the
realization of the first integrated circuit or
microchip that fueled the personal computer
revolution and gave Silicon Valley its name

21. Steve Wozniak
invented the Apple I computer. The
pair founded Apple Computers in
1976 with Ronald Wayne, releasing
some of the first personal computers
on the market.

22. Grace Murry Hopper
was a computer pioneer and naval officer.
She received a master's degree (1930) and
a Ph.D. (1934) in mathematics from Yale.
One of the first three modern
“programmers,” Hopper is best known for
her trailblazing contributions to the
development of computer languages.

23. Vint Cerf
Widely known as a “Father of the Internet,”
Cerf is the co-designer of the TCP/IP
protocols and the architecture of the
Internet. In December 1997, President Bill
Clinton presented the U.S. National Medal of
Technology to Cerf and his colleague, Robert
E. Kahn, for founding and developing the
Internet.