Narrow plastic ribbon coated with an easily magnetiable meterial on which data can be recorded.For mass storage on commercial mainframes computers large reel-to-reel tapes are still used but cartidge of diggerent sizes are widely used.
Main Frame:Large computer used for commercial data processing and other large-scale operations .Mainframe computers useually use a proprietary operating system .Because of the general increases in computing power,the differncess between the mainframe super computer minicomputer and micro computer(personal computer) re becoming less marked.
Mega byte:(mbyte)unit if memory equal to 1,024kilobytes,It is sometimes used less pricesly to mean 1 million bytes.
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