Control, controlling function of the whole computer system, such as the control of the king's main memory input arithmetic logic unit. The display unit, and data storage is different, so the work of this unit, it is a center nervous system. The controlling function of the parts of the computer. The control unit and the unit will recognize the various commands in the form of the language. If the user to write programs using high-level languages. Before ordering the computer work to be converted to Old English.Cached memory. A small memory within the CPU, called memory level 2 usually size 512 kilobytes. A spool data to be processed in advance and keep the rest information processing wait to export the CPU work faster. The memory function acting spool data outside the CPU memory 3 level.
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