Category: Computer Studies/ICT/IT (All Classes)


Generation of Computers

A generation is often referred to as the state of improvement in the development of a product. The generation of a computer is the advancement of computer technology from time to time.

In every generation, the circuitry has become smaller and more advanced than the previous generation. Each generation of computer is characterized by major technological development.

There are five generations of computer which are:

First-generation (1940 – 1956)
Second generation (1956 – 1963)
Third generation (1964 – 1971)
Fourth generation (1971 – 1983)
Fifth-generation (1983 – present and

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They are four classifications of a computer by size name:

(i) Microcomputer      

 (ii) Minicomputer

(iii) Mainframe computer

(iv) Supercomputer

Micro Computer: A microcomputer is the smallest computer that has a processor on a single silicon chip. Its CPU is a microprocessor chip. Examples of microcomputers are personal computers (PC), laptop computers, desktop computers, palmtop computers, etc.

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Digital divide is the gap between people with effective access to digital and information technology and those with very limited or no access at all.

It is the gap between those who use computers and the internet and those who do not. It is the unequal access by some members of society to information and communication technology, and the unequal acquisition of related skills.

Four major components that contribute to the digital divide are:

Social economic status
Educational level
Race among other factors associated with technological attainment

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