IBM PS/55 Note

☆ Save On Wikipedia ↗
IBM PS/55 Note
ManufacturerIBM
Product family
IBM PS/55
Released1991 (1991)[1]
Introductory price
between $1,680 and $2,550
PredecessorIBM PC Convertible
Model N23SX (5523-S)

The IBM Personal System/55 Note (stylized as PS/55 note) is a series of notebooks manufactured by the IBM subsidiary IBM Japan as part of the IBM Personal System/55 series.

Machine type 5523 were designated as 'notebook' computers distinct from type 5535 which were larger 'laptop' multistation computers.

The international IBM PS/2 Note series was based on the PS/55 Note series and used the ISA bus (with the final exception of the C52).

History

IBM started selling the PS/55 Note series in Japan in April 1991.[2]

Western Digital has supplied video and logic chips for the PS/55 Note.[3]

The second generation notes had an N model number signifying 'Notebook'. The third and fourth generation notes changed to C for 'Colour' and M for 'Monochrome'.

Models

The prices for the PS/55 Note varies between $1,680 and $2,550.

  • Model 'note' (5523-S0x) was the first release with a 12Mhz 80386 CPU.
  • Model N23/N33 SX (5523-SCx) (03/1991) was the second generation note with 16Mhz 80386 CPU.
  • Models M23V and C23V (10/1992) joint-third-generation and first TFT option note, but without a Trackpoint.
  • Model C52 (10/1992) was a fourth and final generation note identical to the ThinkPad 700C with MCA bus.[4][5]
  • Model T22sx (1992) was an offshoot machine with detachable tablet and keyboard machine.
  • Model N27sx (02/1992) was not a notebook and forerunner of the PS/2 CL57SX model.

Reception

The PS/55 Note was a rapid success in Japan.[6]

References

  1. Valligra, Lori (September 7, 1987). "IBM Japan Announces Addition to PS/55 Line". InfoWorld. p. 21.
  2. Sanger, David E. (April 11, 1991). "COMPANY NEWS; Selling Now in Tokyo: Tiniest I.B.M. Portable". The New York Times. ISSN 0362-4331. Retrieved April 20, 2021.{{cite news}}: CS1 maint: deprecated archival service (link)
  3. "SCIENCE/TECHNOLOGY: New IBM Products May Be Good News for Western Digital". Los Angeles Times. December 31, 1991. Retrieved April 21, 2021.
  4. "ThinkPad 10th Anniversary Special 10". Watch Impress (in Japanese). Retrieved April 20, 2021.
  5. "みなとみらいの大和事業所で「20世紀のThinkPad」と再会した" [Reunited with "20th century ThinkPad" at Yamato Office in Minato Mirai]. ITmedia (in Japanese). Retrieved April 20, 2021.
  6. Management of design alliances: sustaining competitive advantage. Margaret Bruce, Birgit H. Jevnaker. Chichester: Wiley. 1998. p. 93. ISBN 0-471-97476-5. OCLC 36663061.{{cite book}}: CS1 maint: others (link)