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CP/M requires a disk system and a substantial amount of memory to be used most effectively. CP/M is thus not part of atypical small system for home use, but an increasing number of businesses are buying disk based systems and CP/M. Such acombination, while priced well above the cost of entry level systems, is very competitive with the minicomputer alternativesthat do the same jobs in a business environment. The manuals for CP/M are several hundred pages long. CP/M is composed of several subcomponents that do a particular job:* Console Command Processor* Basic Disk Operating System* Editor* Peripheral Interface Program* Dynamic Debugging ToolConsole Command ProcessorCCP is part of the real world interface for the system. It iswhat the user talks to, and it in turn directs some of the activitiesof other subcomponents. CCP also has built-in routines to han-dle input and output from peripherals like printers and a CRT.