sagar dixit eit
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Computer Generations
SUBMITTED TO SUBMITTED BY
NIDHI BIRTHARE SAGAR DIXIT MCA 1ST SEM
First Genra-
tion
Second Genra-
tion
Third Genra-
tion
Fourth Genra-
tion
Fifth Genra-
tion
Se-ries 1
1951 1959 1965 1975 1990
History of computer
English mathematician,
engineer, philosopher and
inventor.
Originated the concept of the programmable computer, and designed one
Charles Babbage Father of computer 1791-1871:-
First Generations 1951- 1958:ENIAC The ENIAC (Electronic Numerical Integrator and Computer) was unveiled in 1946: the first all-electronic, general-purpose digital computer
Vacuum Tubes
Magnetic Drum
4,000 bits
Hard Wire Programs in computers
IBM 650, Univac I
ENIAC
Second Generation 1959-1964
Transistors
Magnetic Cores
32,000 bits
Punch Cards
CDC, GE, IBM
Third Generation 1965-1974
Silicon
Chips (Integrated
circuits)= IC
Cores, IC’s
128,000
bits
Keyboard
Entry
IBM, NCR,
Honeywell
Fourth Generation 1975-1989
Silicon Chips (Large scale integrated circuits)=
LSI
IC’s, LSI’s
Read programs off
disks
Apple, Xerox, Texas Instrument,
Hewlett-Packard
Fifth Generation 1990-present
Silicon Chips ( Very Large Integrated
Circuits) VLSI
Nanotechnology
Present technology
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