Chapter 1System OverviewNCR PERSONAL COMPUTER HARDWAREThe NCR Personal Computer consists of a main DisplayUnit and a Keyboard. The computer is available indifferent models, and has a variety of options thatcan be added to each model. Expansion boards fromnon-NCR ("third party") manufacturers can be usedwith the NCR Personal Compter, as well as expansionboards offered by NCR.DISPLAY UNITThe standard Display Unit consists of the followingparts:o Cabineto Power Supplyo 1 or 2 flexible disk drive(s) or one flexible diskdrive and one hard disk driveo 12-inch monochrome CRT display or 12-inch colorCRT displayo Processor Board with:o 8088 Microprocessoro 256 KB Random Access Memory (RAM)o 16K Read Only Memory (ROM)o RS-232-C Serial Interfaceo Centronics Parallel Interface (for printer)1-1
