{{Short description|Series of notebook computers released in Japan}} {{Infobox information appliance | name = IBM PS/55 Note | aka = | logo = File:IBM PS55 logo.svg | logo-size = | image = | caption = | developer = | manufacturer = IBM | family = IBM PS/55 | type = | generation = | release_date = {{Start date and age|1991}}<ref name="Valligra-1987">{{Cite news|last=Valligra|first=Lori|url=https://books.google.com/books?id=vDsEAAAAMBAJ&dq=PS%2F55+5535&pg=PA21|title=IBM Japan Announces Addition to PS/55 Line|date=1987-09-07|page=21|newspaper=InfoWorld |language=en}}</ref> | lifespan = | price = between {{US$|long=no|1680}} and {{US$|long=no|2550}} | discontinued = | units_sold = | units_shipped = | media = | os = | power = | system_on_chip = | cpu = | memory = | storage = | display = | graphics = | sound = | input = | controllers = | ports = | platform = | online_services = | dimensions = | weight = | predecessor = IBM PC Convertible | compatibility = | related = | website = }} thumb|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.<ref>{{Cite news|last=Sanger|first=David E.|date=1991-04-11|title=COMPANY NEWS; Selling Now in Tokyo: Tiniest I.B.M. Portable|language=en-US|work=The New York Times|url=https://www.nytimes.com/1991/04/11/business/company-news-selling-now-in-tokyo-tiniest-ibm-portable.html|access-date=2021-04-20|archive-url=https://archive.today/20210420173842/https://www.nytimes.com/1991/04/11/business/company-news-selling-now-in-tokyo-tiniest-ibm-portable.html|archive-date=2021-04-20|issn=0362-4331|url-status=live}}</ref>
Western Digital has supplied video and logic chips for the PS/55 Note.<ref>{{Cite web|date=1991-12-31|title=SCIENCE/TECHNOLOGY: New IBM Products May Be Good News for Western Digital|url=https://www.latimes.com/archives/la-xpm-1991-12-31-fi-1397-story.html|access-date=2021-04-21|website=Los Angeles Times|language=en-US}}</ref>
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 {{US$|long=no|1680}} and {{US$|long=no|2550}}. * 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.<ref name="Watch Impress">{{Cite web |title=ThinkPad 10th Anniversary Special 10 |url=https://pc.watch.impress.co.jp/docs/2002/1029/tp10.htm |access-date=2021-04-20 |website=Watch Impress |language=ja}}</ref><ref>{{Cite web |title=みなとみらいの大和事業所で「20世紀のThinkPad」と再会した |trans-title=Reunited with "20th century ThinkPad" at Yamato Office in Minato Mirai |url=https://www.itmedia.co.jp/pcuser/articles/1504/07/news030.html |access-date=2021-04-20 |website=ITmedia |language=ja}}</ref> * 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.<ref>{{Cite book|title=Management of design alliances: sustaining competitive advantage|date=1998|publisher=Wiley|others=Margaret Bruce, Birgit H. Jevnaker|isbn=0-471-97476-5|location=Chichester|pages=93|oclc=36663061}}</ref>
== References == {{Reflist}}
== External links == * [https://thinkwiki.de/PS_55_Note Thinkwiki.de - PS/55 Note]
{{IBM personal computers}}
PS/55 Note Category:Computer-related introductions in 1991 PS/55 Note