IBM Personal System/55
PS/55 - Japanese PS/2

IBM Systems

Personal System/55

PS/55 Model-Type Chart
PS/55 Timeline Diagram
xxx0 or xxx1? - PS/55 Model Numbers

Model 5510
Model 5520
Model 5530
Model 5540
Model 5550 386
Model 5550 486
Model 5560
Model 5570
Model 5580

PS/55 E [Type 5538]

PS/55 Processor Complexes (5560 & 5580 only)
Reply PowerBoard

PC Series

PC720 [Type 6860]
PC730/750 [Types 6875, 6876, 6885, 6886]


Adapter List

Japanese SCSI Adapters
Japanese Display Adapters
Japanese SVGA Adapter

Other Hardware

Processors (CPU Interposers/Upgrades were moved here)

5576 Keyboard
Model M and others (external, mostly written in Japanese)



File Collection
Brochures [!]

Japanese Tips
Still Crazy (monologue of sorts)
Update History

Content by Tatsuo "Sandy" Sunagawa (email). Modified by Tomáš Slavotínek.
Special thanks to All members of the Bulletin Board #4 in FIBMJ @Nifty and MCA Mafia.

Content created and/or collected by:
Louis Ohland, Peter Wendt, William Walsh, David Beem, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 19 Nov 2021 - Changes & Credits | Legal Info & Contact