what is the difference of port of generic computer to branded computer]
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The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatiblehardware platform. It is IBM model number 5150, and was introduced on August 12, 1981. It was created by a team of engineers and designers under the direction of Don Estridge of the IBM Entry Systems Division in Boca Raton, Florida.

IBM Personal Computer with IBM CGA monitor (model number 5153), IBM PC keyboard, IBM 5152 printer and paper stand. (1988)
TypePersonal computerRelease dateAugust 12, 1981; 37 years agoDiscontinuedApril 2, 1987; 31 years agoOperating system
IBM BASIC / PC DOS 1.0
CP/M-86
UCSD p-System
CPUIntel 8088 @ 4.77 MHzMemory16 kB – 256 kBSound1-channel square-wave/1-bit digital(PWM-capable)PredecessorIBM DatamasterSuccessor
IBM Personal Computer XT
IBM Personal System/2
IBM PCjr
IBM Portable Personal Computer
IBM PC Convertible

IBM Personal Computer with IBM CGA monitor (model number 5153), IBM PC keyboard, IBM 5152 printer and paper stand. (1988)
TypePersonal computerRelease dateAugust 12, 1981; 37 years agoDiscontinuedApril 2, 1987; 31 years agoOperating system
IBM BASIC / PC DOS 1.0
CP/M-86
UCSD p-System
CPUIntel 8088 @ 4.77 MHzMemory16 kB – 256 kBSound1-channel square-wave/1-bit digital(PWM-capable)PredecessorIBM DatamasterSuccessor
IBM Personal Computer XT
IBM Personal System/2
IBM PCjr
IBM Portable Personal Computer
IBM PC Convertible
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