MAINFRAME COMPUTERS

                                                

MAINFRAME COMPUTERS
Mainframe computers can also process data at very high speeds vi.e., hundreds of million instructions per second and they are also quite expensive. Normally, they are used in banking, airlines and railways etc for their applications.
Mini Computers
Mini computers are lower to mainframe computers in terms of speed and storage capacity. They are also less expensive than mainframe computers. Some of the features of mainframes will not be available in mini computers. Hence, their performance also will be less than that of mainframes.

Micro Computers
The invention of microprocessor (single chip CPU) gave birth to the much cheaper micro computers. They are further classified into
Desktop Computers
Laptop Computers
Handheld Computers(PDAs)

Source; Smyleworld Info-Tech
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