Atari Portfolio
IBM PC-compatible palmtop PC, and was released by Atari Corporation in June 1989
The Atari Portfolio is the world's first IBM PC-compatible palmtop PC, released by Atari Corporation in June 1989.
History
DIP Research Ltd. based at the Surrey Research Park in Guildford, Surrey, UK developed the first MS-DOS-compatible palmtop PC, the DIP Pocket PC. It was IBM PC-compatible at the BIOS level, but not at the I/O port level. A prototype version was released in early 1989 as a proof of concept.
Atari became aware of this release, and saw a market opportunity. It licensed the electronics & software design from DIP, and applied its production engineering expertise to create a consumer version of the product with a new case and keyboard.
This product was marketed as the Atari Portfolio in the US & UK, and in other countries later on. In Germany, Italy, and Spain it was initially called the PC Folio due to trademark restrictions. Atari acquired the rights to the name Portfolio in Germany and Spain, but it was always called the PC Folio in Italy.
DIP continued to evolve the electronics design (including expansion modules) and all the ROM software, supplying software updates to Atari over the production cycle.
“Atari Portfolio” enters the record as iBM PC-compatible palmtop PC, and was released by Atari Corporation in June 1989. Crown Archives preserves that source wording while asking what Atari, Portfolio and PC-compatible can confirm, complicate or overturn.
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“Atari Portfolio” is worth following because a concise public description often conceals a longer documentary argument. Here, Atari, Portfolio and PC-compatible provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 20, 2026. The linked authority identifier is Q660845. The Library of Congress control number is sh89005866. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1989.
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This entry incorporates text from “Atari Portfolio” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.