The document summarizes the characteristics of third generation computers from 1964-1975. Third generation computers transitioned from using transistors to integrated circuit chips, making them smaller in size than previous generations. They also transitioned from punch cards to electronic computer systems. Key features included increased storage, multi-programming, use of keyboards and monitors, time sharing, and higher level languages. Important developments included the introduction of the IBM360 mainframe in 1964 and the PDP-8 in 1965, the first computer to use cheaper and smaller integrated circuits. In 1969, UNIX introduced a multi-user operating system able to perform multi-tasks.

1. MOHIT DAGA
ROLL NO. 26
BCA (1)–EVE.
IITM

4. .

5. 1. First
Generation(1946-
1955)
2. Second
Generation(1956-
1963)
3. Third
Generation(1964-
1975)
4. Fourth
Generation(1976-
1985)

7. The period of third
generation was 1964-
1975. Characterized
by the transition from
transistors to the
INTEGRATED
CIRCUIT CHIPS and
from punch card to
ELECTRONIC
COMPUTER
SYSTEM.

8.  Smaller in size then 1st and 2nd generations.
 Increased storage capabilities.
 Multi-programming and volatile.
 Speedy than 1st and 2nd generations.
 Keyboards and monitors were used for the
first time.
 Time sharing.
 High level languages used
 Generate less heat
 AC still needed

10. 1964__1965: IBM360 by IBM Inc was introduced.
1965: PDP-8 was introduced. It was the 1st
computer which successfully made use of IC chips
which were much cheaper and smaller. It only has
4096 words of memory.
1966: HP-2115 with this invention HEWLETT
PACKARD entered in the computer business.

11. 1969:UNIX introduced multi-user
operating system which was able to
perform multi tasks.
1970:GUI(pronounced as GOOEY)
designed by XEROX corporation. POINT
and CLICK, and IMAGE icons idea was
introduced.