IBM 5535-M

Header image from http://ibm5550.na.coocan.jp/5535m18-e.html

The IBM PS/55 5535-M is a series of laptops in the Multistation Family. That was basically Japan’s IBM PS/2 PC, but it required better graphics & screen resolution due to japanese (and east asian) characters.

The 5535-M is more of a clamshel machine than a laptop, as it is fairly bulky, like a luggable. As you know, the 5550 got compact and became the PS/55, so this is a forefather to those machines, which was precursor to the ThinkPad (which itself was a clone of a PS/55).

TPG V9
TPG V8

eBay Prices

None! Havent been on ebay when i searched for them. looked elsewhere with no dice before, not gonna do it again. Get the MTM/Part Numbers and best of luck!

eBay Link – 5535

MTM       Released  Withdrawn
5535-M08  1987 10   1989 02?
5535-M18  1988 10   1990 02?
5535-M19  1989 11   1991 05?
5535-MR8  ????	   ????
5535-MS8  ???? 	   ????
5535-MS9  ????	   ????
      

System specs

• Machine Type Model – 5535 – Mxx
• CPU – 10MHz Intel 286
  • Socket – ??
• GPU –
  • 16 Dot Mono
• Soundcard –
• Screen – 720 x 512
  • Monochrome STN
  • 16 Dot Characters
    • size????
• Memory –
  • Module type –
  • Sizes – 1MB to 2MB
  • MHz speed –
    • Upgrade notes –
• Storage Type –
  • Default sizes -20GB, 30GB if -MS9?
  • Speed –
• Ultrabay Version – N/A
  • Type of drive – 3.5″ High Density
  • Options –
• Card expansion – ????
• Weight – ???
• Power Cord – 3 Pin Plug

Ports & Misc

• Docking or ThunderBolt
• Replicator / MiniDock
• Internal Expansion
• I/O
  • RS-232C
  • Expansion slot? – 5250 Adapter/Lt
  • 36 Pin Printer port

Links

PSREF Official
PSREF Mirror
Wiki(s)
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HMM
Parts List

Resources

https://ardent-tool.com/IBM_5550/5535
http://ibm5550.na.coocan.jp/5535m18-e.html
https://vintagecomputer.ca/ibm-5535-m18-multistation/

Keyboard Info
https://deskthority.net/wiki/IBM_Multistation_Keyboards
Supposedly it has a similar keyboard to the IBM PC Convertible.
Alps w/ Linear switches???

Screen Info
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Motherboard FRUs
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Saucey’s Thoughts

Best of luck finding info on 5535-M machines, PS/55 got imported a bit, especially the notebooks. These? Japan auctions only, and you’ll need to know PS/55 or DOS/V software, along w/ the language translation.

Get one for bragging rights…