The Generation of Computers (B6.1.1.1.1)

Learners will be able to discuss the Generation of Computers.
Microprocessors - Super Computers, Mainframe, Minicomputers and Microcomputers, Mobile Phones, etc

1. Generation
B6.1.1.1.1
Of computers

2. B6.1.1.1.1
GENERATION OF COMPUTERS
Generation of computers refers to the
various stages of development in
technology and innovation.
The Generations are:
First-generation Second-generation
Third-generation Fourth-generation
Fifth-generation

3. B6.1.1.1.1
FIRST GENERATION COMPUTERS (1940 – 1956)
•They were based on vacuum tube technology.
•These were the fastest computing devices of
their times.
•They were very expensive to operate.
•They used a large amount of electricity.
•These computers were very large, and required
a lot of space for installation.

4. B6.1.1.1.1
SECOND GENERATION COMPUTERS (1956-1963)
•They were based on transistor technology.
•They were smaller as compared to the first-
generation computers.
•They were quite portable.
•They generated less heat
•The frequency of maintenance
was less compared to first generation

5. B6.1.1.1.1
THIRD GENERATION COMPUTERS (1964 - 1970)
•They were based on Integrated Circuit (IC)
technology.
•They were more portable and more
reliable than the second generation.
•They consumed less power and produced less heat.
•It was smaller as compared to previous computers.
•The maintenance cost was quite low.

6. B6.1.1.1.1
FOURTH GENERATION COMPUTERS (1970 - 1980)
•They are based on VLSI technology -microprocessor
•These computers generate very small heat
•They are the cheapest among all the other Gen.
•They are portable and quite reliable.
•These computers are very small.
•Production cost is very low.
•Power consumption is very low

7. B6.1.1.1.1
FIFTH GENERATION COMPUTERS (1980 - DATE)
•They are based on Artificial Intelligence (AI)
•Computers that are more portable and powerful.
•Computers are dependable and less expensive.
•Advancement in Parallel Processing
•More user-friendly interfaces with multimedia
features

8. B6.1.1.1.1
CLASSIFICATIONS OF COMPUTERS : SIZE
•Another way of classifying computers aside their
generation is by classifying them according to
their SIZES & CAPACITY:
•Supercomputer.
•Mainframe computer.
•Minicomputer.
•Microcomputer

9. B6.1.1.1.1
CLASSIFICATIONS OF COMPUTERS : SIZE
Supercomputers are very fast:
•It can calculate up to ten
trillion individual calculations
per second.
•It is used in scientific
research areas for analyzing
data.

10. B6.1.1.1.1
CLASSIFICATIONS OF COMPUTERS : SIZE
Mainframe is also an expensive
or costly computer.
•It has high storage capacity and
great performance.
•It can process a huge amount of
data (like data involved in the
banking sector) very quickly.

11. B6.1.1.1.1
CLASSIFICATIONS OF COMPUTERS : SIZE
Minicomputer is a medium size
multiprocessing computer.
•Its weight is low.
•Minicomputers are used in places
like institutes or departments.
•It is less expensive than a
mainframe computer.

12. B6.1.1.1.1
CLASSIFICATIONS OF COMPUTERS : SIZE
Microcomputer is designed for
personal use (PC).
•It is the smallest in size.
•It is easy to use.
•It consists of a microprocessor as
a Central Processing Unit(CPU)
•Uses limited number of software

13. B6.1.1.1.1
SUMMARY

14. WHAT HAVE YOU LEARNT?

15. ASSESSMENT TIME
•Mention the various generations of
computer and identify their main
component that was used to built.
•What are the various classification of
computers based on their size?