IBM PS/2 Model 50 (8550)

The Personal System/2 or PS/2 was IBM's third generation of personal computers. The PS/2 line, released to the public in 1987, was created by IBM in an attempt to recapture control of the PC market by introducing an advanced proprietary architecture.

The Personal System/2 Model 50 (IBM 8550) introduces advanced design and technology and a new MICRO CHANNEL ARCHITECTURE to provide significant price/performance enhancements for desktop computing and workstations. The 10MHz INTEL 80286 microprocessor offers application growth capabilities and is designed to maintain software compatibility with most current IBM personal computer programs. A high level of feature integration on the system board reduces optional adapter requirements. When configured with the new analog displays, the IBM 8550's new integrated Video Graphics Array (VGA) provides enhanced performance, increased display functions, and increased color availability. The system includes a 1.44MB, 3.5-inch diskette drive and a 20MB fixed disk drive. Besides the new mouse, memory, math co-processor, and diskette drive options, new connectivity options (dual asynchronous, multi- protocol, and modem adapters, and other options) allow the IBM 8550 to communicate with a variety of hosts and networks.

The keyboard with the unit has the following reference numbers:
with a date of 02/10/1987

Manufacturer: IBM
Date: October 1987

Other Systems Related To IBM PS/2 Model 50 (8550):

Item Manufacturer Date
IBM System 370 Control Panel IBM 1970
IBM 370/138 IBM 30th June 1976
IBM Displaywriter IBM 1980
IBM 5161 IBM 1981
IBM 5150 IBM 1st September 1981
IBM 5160 XT IBM 1st January 1983
IBM 5170 IBM 1984
IBM 5155 Portable Computer IBM 1st June 1984
IBM 5140 Convertible Computer IBM April 1986
IBM PS/2 Model 70 IBM 1987
IBM PS/2 Model 30 IBM April 1987
IBM PS/2 Model 80 (8580-071) IBM 2nd April 1987
IBM PS/1 IBM 1990
IBM RS/6000 Model 550L IBM 1990
IBM PS/1 Machine 2133 Model 114 IBM 1990
IBM Model 8573-121 IBM January 1990
IBM RS/6000 320 IBM 15th February 1990
IBM PS/2 Note IBM 1991
IBM PS/2 Model 95 (8595) IBM 1991
IBM ThinkPad 2523-710T IBM 1993
IBM ThinkPad 701CS IBM 1995
IBM ThinkPad 755CEX IBM March 1995
IBM RS/6000 SP2 Type 7025 IBM 1996
IBM ThinkPad 365XD IBM 1996
IBM RS/6000 Model 7043 604e IBM 1998
IBM 8363 NetVisa Thin Client IBM November 2000
IBM ThinkPad R30 2656 IBM 2001
IBM Thinkpad 2628-STG IBM 2001

This exhibit has a reference ID of CH5082. Please quote this reference ID in any communication with the Centre for Computing History.


IBM PS/2 Model 50 (8550)

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