Generation of Computer

FIRST GENERATION (1942 – 1958):

a.They were very huge.

b.The storage capacity was limited.

c.Vacuum tubes were used in circuits.

d.Expensive tubes excess Electricity, the need for heavy Air conditioning due to high evolution of heat, etc.

e.The speed was in Millie seconds.

f.Failure was in hours.

SECOND GENERATION (1959 – 1964):

a.The size was reduced compared to the first generation of computers.

b.The storage capacity was increased.

c.Transistor replaced vacuum tubes.

d.Less Expensive Transistors, less Electricity, Less heat evolved, Low Air Conditioning Resulted in a decrease in the cost of Machines.

e.The speed was in Microseconds.

f.Failure was in days.

       

THIRD GENERATION (1965 – 1970):

a.The size was reduced compared to the second generation.

b.The IC (INTEGRATED CIRCUITS) with hundreds of components on a small silicon chip was introduced.

c.The speed was increased considering Nanoseconds.

d.Failure was in months.

 

FOURTH GENERATION (1971 onwards):

a.The size is much reduced and had become more compact.

b.Use of the latest technology led to the development of new input & output devices.

c.The speed is increased to Pico seconds.

d.Introduction of OPERATING SYSTEM results in time-saving, online processing, multi programming, etc.

FIFTH GENERATION: 

This generation is yet to come & scientists are trying for artificial intelligence in a computer. It is expected to take a decision like a ‘Human Brain’ & do all the like a job human beings. E.g. Reading, Doing the household job, Robots Etc.