Computers can be broadly classified by their speed and computing power.

S.No. Type Specifications
1 PC (Personal Computer) It is a single user computer system having moderately powerful microprocessor
2 Workstation It is also a single user computer system, similar to personal computer however has a more powerful microprocessor.
3 Mini Computer It is a multi-user computer system, capable of supporting hundreds of users simultaneously.
4 Main Frame It is a multi-user computer system, capable of supporting hundreds of users simultaneously. Software technology is different from minicomputer.
5 Supercomputer It is an extremely fast computer, which can execute hundreds of millions of instructions per second.

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