Main frame computers are large scale general purpose computers systems. The word main frame has its origin in early computers which were big in size and required large frame work in house. Main frame computers have large storage capacities in several million words. Secondary storage devices are directly accessible by these computers. These computers systems have more than one CPU and can support a large number of terminals.
Micro computers are available in small size which utilize micro processors. The CPU of micro computers is usually contained in one chip. Micro computers have low storage capacity and slow operation rate than main frame computers. Micro computers are provided with video display unit, printer and secondary storage devices such as CD Drive, hard disk.
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