History of computer

1. My name is Manish yadav.
I am pursuing Diploma in
mechanical from ACMT
Group of College Saket.
I have done Intermediate
from M K D Inter College.

4. A computer is an
electronic device that can
perform variety of tasks
according to set of
instructions given by the
user.

5. Abacus is an
calculating device.
Abacus was
developed in china
almost 5000 years
ago.

6. In 1642 the famous
French mathematician
Blaise Pascal invented a
device called
“Arithmetic Engine”

7. This was the first
successfully
mathematical
calculator it has
complex
arrangement of
wheels and gears.

8. In 1835 Charles Babbage
an English
mathematician designed
on paper an “analytical
engine”.

9. He could not actually
produce it because the
technology of the
time was not advance
enough.

10. Ada Byron is the
first programmer of
the world. She write
meaning full code
for Babbage's
Analytical engine.

13. Thousand of Vacuum
tube
Electromagnetic memory
Punched cards used
Assembly language

14. Machine
languages
Assembly languages
Use in scientific
application
Bulky in size

15. (1955-1964)
sECOND GENERATION

16. Transistor used
Magnetic core memory
Magnetic tape as
storage
Batch processing
system

17. High level prog.
language
Electromagnetic
memory
Scientific purpose
Faster then
previous

18. THIRD GENERATION
(1965-1975)

19. Integrate circuit-
SSI,MSI
Magmatic core
memory
Magnetic tape as
storage
Batch operating
system

20. Timesharing operating
system
Commercial
applications
Faster – smaller then
previous
Minicomputers
introduced

21. (1975-1989)
FORTH GENERATION

22. Integrated with VLSI
Microprocessor
Semiconductor memory
Spread high-speed computer
network

23. GUI based operating
system
Unix operating
system
C programming
language
Network based
application

24. (1989-PRESENT)
FIFTH GENERATION

25. Integrated with ULSI
Larger capacity of hard
disk
Powerful desktop PCs
Powerful mainframe

26. Word wide web
Multimedia
application
Portable computer
General purpose
machines