Question

compare the characteristics of the second and third generation of computer

Answer 1

The second generation computers were developed during 1959-1965. The invention of the transistor by three scientists of Bell Telephone Laboratories in 1947 greatly changed the development of computers. However some of the features are as follows-

a) These computers used transistor.

b) They were smaller, faster and cheaper than first generation of computer.

c) They consumed less electrical power than first generation.

d) The operating speed was measured in microseconds.

e) They were more reliable and accurate than the first generation computers.

f) They could understand high level language such as COBOL.

g) Magnetic tapes were used as secondary storage media.

The examples are – IBM 1620, IBM 1401, and CDC 3600.

The third generation computers were developed during 1966-1973. The development of Integrated Circuit (IC) signaled the beginning of the third generation computers. However some of the features are as follows-

a) These computers used integrated circuits.

b) They were small, efficient and reliable.

c) Operating systems were developed.

d) Monitors and keyboards were introduced for input and output of data.

e) Magnetic disks were used for secondary storage.

f) The operating speed was measured in nano seconds.

g) They could understand large number of high level languages.

The examples are – IBM 360, ICL -1900, and IBM 370 etc

hope it helps