Charles Babbage is considered the father of computers. He designed the Difference Engine and Analytical Engine in the early 1800s, laying the groundwork for modern computers. The Difference Engine used the difference method to calculate polynomials. The Analytical Engine used punched cards and had separate mill and store components analogous to a CPU and memory. Early computers from the 1930s-1950s used vacuum tubes and relied on machine language via punched cards. Transistors replaced vacuum tubes starting in the late 1940s, allowing for smaller, more powerful computers that could store programs in memory. Integrated circuits replaced transistors in the 1960s, leading to smaller, more reliable computers. Microprocessors emerged in the 1970s, enabling the development of personal

1. HISTORY
OF
COMPUTER
Presented by: Arti Rajput

2. Charles Babbage,
father of
computer
Born on 26 Dec
1791 in London
Mathematics
professor
Charles Babbage (1791-1871)

3. DIFFERENCE ENGINE I
 On 14 june 1822,
it was presented
by Charles to
Royal
Astronomical
Society
 It can calculate
only polynomials
by using a
numerical
method called
the difference
method.

5. ANALYTICAL ENGINE
• Its design was emerged by 1835
• Used punched cards to specify input
• Consists of two parts
i. Mill
ii.Store
• Mill is like a CPU, executes the operation on
values retrieved from the store
• Store serves as memory

6. DIFFERENCE ENGINE II
• It was
designed
between oct
1846 & mar
1849.
• Only 8000
parts were
used

7. Computers can be classified into
different generations

8. FIRST GENERATION OF COMPUTER(1937-1946)

9. FIRST GENERATION
COMPUTERS
(1932-1946)
• Vacuum tubes were used
• Relies on machine language
• Punched cards are used to specify input
• Difficult to operate
• Example ENIAC

10. SECOND GENERATION(1947-1962)

11. SECOND GENERATION
COMPUTER
(1946-1962)
• Vacuum tubes are replaced by
transistors
• First computers that stored their
instructions in their memory
• Tape and disk media were used as
storage media

13. THIRD GENERATION
COMPUTERS
(1963-1971)
•Transistors are replaced by
integrated circuit
•Smaller, powerful and reliable
•Many program can be run at
same time

15. FOURTH
GENERATION
COMPUTER
(1971-Present)
• Microprocessor are being used
• Computer are small and powerful
• Could be linked together to form
network

16. Fifth generation computers
are in designing mode with
artificial intelligence
technology