Mac OS X, which is pronounced “O S ten.” megabyte (MB): About 1 million bytes of computer storage or 1,024 kilobytes. microprocessor: Also called a CPU. The brains of the computer, which performs mathematical operations, stores and transfers data, and processes instructions from software and other hardware components. Intel Corporation invented the first microprocessor in 1971. minicomputer: Typically a stand-alone device about the size of a refrigerator, it was used for business applications that needed more power and memory than a microcomputer, but less than a mainframe computer.
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