{"id":24336,"date":"2026-04-17T20:00:00","date_gmt":"2026-04-17T18:00:00","guid":{"rendered":"https:\/\/www.jungsi.de\/?p=24336"},"modified":"2026-04-17T21:36:02","modified_gmt":"2026-04-17T19:36:02","slug":"atari-portfolio-atari","status":"publish","type":"post","link":"https:\/\/www.jungsi.de\/en\/atari-portfolio-atari\/","title":{"rendered":"Atari Portfolio"},"content":{"rendered":"

Atari Portfolio \u2013 my DOS handheld from the 90s (and why it still fascinates today)<\/strong><\/p>\n\n\n\n

Whenever I write an article about the Atari Portfolio, I\u2019m struck by just how quickly time flies. I actually owned the device myself back then \u2013 bought it (like so many things) quite simply from Quelle \u2013 and used it extensively in the 90s. And yet, so far there is only one short post on my blog, dating from 2012:
https:\/\/www.jungsi.de\/atari-portfolio\/<\/a><\/p>\n\n\n\n

Back then, I barely managed to form more than a fleeting impression. Today, I\u2019d like to make up for that and describe the Portfolio as it deserves: as a device that packed \u2018real everyday PC use\u2019 into a format you could actually take with you on the go.<\/p>\n\n\n\n

A handheld computer that wasn\u2019t actually an Atari<\/strong><\/p>\n\n\n\n

What many people don\u2019t know is that the hardware design and ROM software (BIOS, DOS, shell and the complete PIM applications) were originally not developed by Atari<\/strong>. The technical basis came from DIP Research Ltd.<\/strong> in the UK, which had previously demonstrated a \u2018Pocket PC\u2019 as a proof of concept. Atari licensed this platform and turned it into a market-ready product.<\/p>\n\n\n\n\n\n\n\n

Atari did not \u201cmerely\u201d contribute the logo: the industrial design team developed the production casing and the keyboard, and adapted the electronics to the new layout. In practice, this meant, amongst other things, that the internal components were adapted to the casing (e.g. the position of the LCD module) and that, in the process, corrections and improvements identified during the development process were also incorporated.<\/p>\n\n\n\n

The case: a distinctive design<\/strong><\/p>\n\n\n\n

The Portfolio is a device you recognise instantly: that compact clamshell design that feels like a mini-laptop, but leans more towards a \u2018VHS cassette\u2019 \u2013 only with a keyboard.<\/p>\n\n\n\n

Ira Velinsky <\/strong> is often cited as the designer, having created several case designs for Atari. This fits in with the overall picture: the Portfolio looks like a genuine mass-produced product rather than a \u2018tech prototype\u2019 that just happened to end up on the market.<\/p>\n\n\n

\n
\"Atari
Atari Portfolio HPC006<\/figcaption><\/figure>\n<\/div>\n\n\n

Launched in 1989, widely available by 1990<\/strong><\/p>\n\n\n\n

At trade fairs in 1989, the device appeared under various names before establishing itself as the Atari Portfolio. In Germany, the starting price was 798 DM<\/strong> \u2013 and looking back, whilst that wasn\u2019t cheap, it wasn\u2019t an exorbitant price either, considering what you got for it: a PC-compatible computer that ran on batteries and fit in your jacket pocket.<\/p>\n\n\n\n

And yes: the Portfolio is often described as the \u2018first IBM PC-compatible palmtop\u2019 \u2013 or at least as one of the first devices to deliver on that promise in a form that could actually be used on the go.<\/p>\n\n\n\n

Displays and everyday life: it\u2019s all about the light<\/strong><\/p>\n\n\n\n

The display consisted of a monochrome LCD with 240\u00d764 pixels<\/strong> (typically 40 characters \u00d7 8 lines in text mode). There was no backlight. That might sound like \u201cso what?\u201d today, but it was a real issue in everyday use: depending on the lighting and viewing angle, the display could be perfectly legible \u2013 or completely unreadable.<\/p>\n\n\n\n

I still remember clearly how I would deliberately seek out the seat by the window or turn the device so that the reflections wouldn\u2019t be a nuisance. Back then, \u2018mobile\u2019 simply meant making do.<\/p>\n\n\n

\n
\"Atari
Atari Portfolio with parallel interface<\/figcaption><\/figure>\n<\/div>\n\n\n

My \u201caha\u201d moment back then: pride, order, null modem<\/strong><\/p>\n\n\n\n

I was so proud when I held this device in my hands for the first time. I immediately started entering data into the address book, wrote my first texts in the editor \u2013 and then came the feature that really turned the Portfolio into a \u2018tool\u2019 for me: Data transfer<\/strong>.<\/p>\n\n\n\n

I used to transfer files to and from my PC the old-fashioned way, using a null modem cable<\/strong> (via the serial port). That\u2019s exactly how the Portfolio became my link: updating data on the go, then continuing my work at home on the PC \u2013 and vice versa. Essentially, that\u2019s what we take for granted today with the cloud and smartphones, only with a 90s twist.<\/p>\n\n\n\n

Hardware at a glance<\/strong><\/p>\n\n\n\n

Inside is an energy-efficient 80C88<\/strong> (a variant of the 8088) running at just under 5 MHz. It also features 128 KB of RAM<\/strong> and 256 KB of ROM<\/strong>, which directly contains the BIOS, DOS, shell and applications. The computer runs on batteries (3\u00d7 AA), and the system settings are usually retained when the batteries are changed \u2013 extremely important for a device that you use \u2018on the side\u2019.<\/p>\n\n\n\n

The operating system: a DOS feel, but with its own DNA<\/strong><\/p>\n\n\n\n

What\u2019s interesting is how it fits in: the Portfolio feels very much like DOS \u2013 commands, filenames, typical workflow \u2013 and is largely compatible with MS-DOS 2.11<\/strong>, provided that programmes do not access PC hardware ports directly.<\/p>\n\n\n\n

The built-in software is the real star here: you simply open the device and can get straight to work. That was (and still is) the Portfolio\u2019s greatest strength.<\/p>\n\n\n\n

Software: this is already stored in the ROM<\/strong><\/p>\n\n\n\n

The most important factor was the software that was already integrated. This includes:<\/p>\n\n\n\n

    \n
  • Command line \/ Shell<\/li>\n\n\n\n
  • Setup<\/li>\n\n\n\n
  • Text editor<\/li>\n\n\n\n
  • Spreadsheet (Lotus 1-2-3 compatible)<\/li>\n\n\n\n
  • Calendar\/diary with reminders<\/li>\n\n\n\n
  • Calculator<\/li>\n\n\n\n
  • Address book (including DTMF dialling via the loudspeaker)<\/li>\n<\/ul>\n\n\n\n

    The address book in particular is a wonderful snapshot of its time: phone numbers could be dialled using DTMF tones<\/strong> \u2013 you\u2019d hold the receiver up to the small speaker, and the Portfolio would \u2018dial\u2019 the number acoustically. It\u2019s quintessentially 80s\/90s \u2013 and at the same time a surprisingly practical idea.<\/p>\n\n\n\n

    Memory cards: Bee cards instead of PCMCIA<\/strong><\/p>\n\n\n\n

    The familiar Mitsubishi \u201cBee\u201d cards<\/strong> (which originally came from the MSX ecosystem) serve as the removable storage medium. They slot into the left-hand side of the device and are mounted as drive (A:). They are formatted using the FAT file system, so the whole setup feels very much like a PC \u2013 except that it uses a memory card format that predates the PCMCIA standard.<\/p>\n\n\n\n

    \n
    \"32K
    32K Memory Card<\/figcaption><\/figure>\n\n\n\n
    \"64K
    64K Memory Card<\/figcaption><\/figure>\n\n\n\n
    \"128K
    128K Memory Card<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

    Multilingualism and ROM versions<\/strong><\/p>\n\n\n\n

    The Portfolio was supplied in several language combinations. Typically, the device supports three languages per ROM variant<\/strong> (e.g. English\/French\/German as a common combination). Different keyboard layouts are also available to match these.<\/p>\n\n\n\n

    In Germany, one often comes across device variants such as HPC-004<\/strong> and HPC-006<\/strong> (depending on the layout or market), often with ROM versions from the \u2018mainstream phase\u2019. For collectors, the topic of ROM versions is a small world of its own \u2013 including later bug fixes and utilities.<\/p>\n\n\n\n

    An insider\u2019s view of development: the book of 2021<\/strong><\/p>\n\n\n\n

    What\u2019s really fascinating is that we now also have an \u2018inside\u2019 perspective: in 2021, an e-book was published entitled \u2018The story behind the creation of the Atari Portfolio\u2019<\/strong>, written by a member of the original development team. This is a lovely addition, particularly for those who are interested not only in the device itself but also in the story of its creation \u2013 because it tells the story of the team, the design decisions and the realities of production.<\/p>\n\n\n\n

    Accessories \u2013 just a brief overview; the rest will follow in a separate article<\/strong><\/p>\n\n\n\n

    I actually intended to cover accessories in a separate post (and I will do so), but to provide the right context, here\u2019s a brief overview:<\/p>\n\n\n\n

    On the right-hand side is the 60-pin expansion port<\/strong>. This allowed modules such as Serial<\/strong> or Parallel<\/strong> to be connected, and there were memory expansions (Memory Expander+) that could significantly enhance the Portfolio\u2019s capabilities \u2013 right up to a PC card (ISA solution) for reading\/writing memory cards on a desktop PC.<\/p>\n\n\n\n

    This is a topic I\u2019d like to explore in more detail separately, because the portfolio encompasses a vast array of \u2018ecosystems\u2019 \u2013 from original Atari games to later specialised solutions.<\/p>\n\n\n\n

    Today in my collection<\/strong><\/p>\n\n\n\n

    I\u2019ve now accumulated quite a collection of Portfolio devices \u2013 including models in excellent condition and special variants or modifications. That alone shows just how durable and collectable this device is: the Portfolio isn\u2019t just \u2018an old computer\u2019, but a piece of mobile computing history.<\/p>\n\n\n

    \n
    \"Portfolio
    Portfolio mit CF Adapter<\/figcaption><\/figure>\n<\/div>\n\n\n

    Conclusion<\/strong><\/p>\n\n\n\n

    The Atari Portfolio is a real favourite of mine because it brings two worlds together: the rigour and clarity of DOS workflows and the idea of making the whole thing truly portable. And it does this so effectively that even today you still enjoy opening it up \u2013 not because it\u2019s \u2018more practical than a smartphone\u2019, but because it shows just how early on the concept of mobile computing was already there.<\/p>\n\n\n\n

    <\/p>","protected":false},"excerpt":{"rendered":"

    Atari Portfolio \u2013 mein DOS-Palmtop aus den 90ern (und warum er heute noch fasziniert) Wenn ich einen Artikel \u00fcber den Atari Portfolio schreibe, merke ich \u2026<\/p>","protected":false},"author":2,"featured_media":1145,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Endlich ein ausf\u00fchrlicher Artikel zum Atari Portfolio: Entwicklung (DIP Research), Historie, Technik, ROM-Software und mein pers\u00f6nlicher R\u00fcckblick auf die Nutzung in den 90ern inkl. Datentransfer per Nullmodemkabel.\n\n#Atari #Portfolio #Palmtop #DOS #RetroComputing #ComputerHistory","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[65],"tags":[4737,4750],"class_list":["post-24336","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-atari-portfolio","tag-hardware","tag-heimcomputer"],"modified_by":"Jungsi","wp-worthy-pixel":{"ignored":false,"public":"ff7a7a5b8fef4707b46e92ff9065a194","server":"","url":"https:\/\/vg01.met.vgwort.de\/na\/ff7a7a5b8fef4707b46e92ff9065a194"},"wp-worthy-type":"normal","jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.jungsi.de\/blog\/wp-content\/uploads\/2012\/07\/Portfolio.jpg","jetpack-related-posts":[{"id":39499,"url":"https:\/\/www.jungsi.de\/en\/memory-card-atari-portfolio\/","url_meta":{"origin":24336,"position":0},"title":"Memory Card","author":"Jungsi","date":"29. May 2026","format":false,"excerpt":"Speicherkarten f\u00fcr den Atari Portfolio: Originalkarten, Programmkarten und mein Backup-Workflow Der Atari Portfolio ist f\u00fcr mich einer dieser Rechner, die erst dann \u201ekomplett\u201c wirken, wenn das passende Zubeh\u00f6r daneben liegt. Und dazu geh\u00f6ren ganz klar die Karten f\u00fcr den seitlichen Steckplatz. In meiner Sammlung habe ich vier Varianten: die originalen\u2026","rel":"","context":"In "Atari Portfolio"","block_context":{"text":"Atari Portfolio","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-portfolio\/"},"img":{"alt_text":"128K Memory Card","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/128K-Memory-Card-Verpackung-Vorderseite.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/128K-Memory-Card-Verpackung-Vorderseite.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/128K-Memory-Card-Verpackung-Vorderseite.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":2311,"url":"https:\/\/www.jungsi.de\/en\/retro-atari-portfolio-tips-tricks-datenubertragung\/","url_meta":{"origin":24336,"position":1},"title":"Atari Portfolio – Tips & Tricks zum Datenaustausch","author":"Jungsi","date":"23. December 2012","format":false,"excerpt":"Dies ist der erste Teil der Artikelserie rund um Tipps & Tricks zum Atari Portfolio und behandelt die vermutlich wichtigste Frage, die sich ein Pofo-Benutzer stellt: wie bekomme ich Daten\/Programme auf den Pofo und wieder zur\u00fcck auf den PC?Was wird dazu ben\u00f6tigt: ein Pofo (nat\u00fcrlich) ein \u201eParallel Interface\u201c (gibt es\u2026","rel":"","context":"In "Atari Portfolio"","block_context":{"text":"Atari Portfolio","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-portfolio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/Atari-Portfolio-Deckel-offen-schraeg-1.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1969,"url":"https:\/\/www.jungsi.de\/en\/atari-portfolio-zubehor\/","url_meta":{"origin":24336,"position":2},"title":"Atari Portfolio – Zubeh\u00f6r","author":"Jungsi","date":"30. July 2012","format":false,"excerpt":"Parallel InterfaceDas wichtigste Zubeh\u00f6r f\u00fcr den Pofo ist das Parallel Interface. Dies ist notwendig um mit dem Ger\u00e4t zu drucken und um Daten mit dem PC auszutauschen (siehe\u00a0Tipps\u00a0zum Pofo).Das Interface wird an den Systembus angesteckt. Atari Portfolio - Parallel Interface Memory ExpanderZum Standardzubeh\u00f6r von Atari z\u00e4hlte auch der Memory Expander.\u2026","rel":"","context":"In "Atari Portfolio"","block_context":{"text":"Atari Portfolio","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-portfolio\/"},"img":{"alt_text":"Atari Portfolio - Parallel Interface","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/2012\/07\/Portfolio-Parallel-Interface.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":24439,"url":"https:\/\/www.jungsi.de\/en\/smm804-atari\/","url_meta":{"origin":24336,"position":3},"title":"SMM804","author":"Jungsi","date":"2. September 2020","format":false,"excerpt":"Der Fund Wenn ich \u00fcber die Abk\u00fcrzung NOS \u2013 New Old Stock \u2013 stolpere, lese ich immer genauer nach. So geschehen mit dem Drucker in diesem Artikel, dem Atari SMM804. Anscheinend ist dieser in einem alten Lager, in Originalverpackung aufgetaucht. Der Begriff NOS bedeutet auch, dass die Hardware \u201eneu\" ist\u2026","rel":"","context":"In "Atari ST"","block_context":{"text":"Atari ST","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-st\/"},"img":{"alt_text":"SMM804","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/SMM804_2.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":3382,"url":"https:\/\/www.jungsi.de\/en\/retro-neu-eingetroffen-atari-lynx-2\/","url_meta":{"origin":24336,"position":4},"title":"Atari Lynx 2","author":"Jungsi","date":"26. May 2013","format":false,"excerpt":"Ich habe meine Sammlung nun (2013) das erste Mal um eine reines \"Spielger\u00e4t\" erweitert. Der Atari Lynx 2 ist eine portable Spielkonsole \u2013 das Original erschien 1989, die \u00fcberarbeitete Version Lynx II, um die es hier geht, kam 1991 auf den Markt.Urspr\u00fcnglich entwickelt wurde das Ger\u00e4t von der\u00a0Spielfirma\u00a0Epyx. Kenner werden\u2026","rel":"","context":"In "Atari Lynx"","block_context":{"text":"Atari Lynx","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-lynx\/"},"img":{"alt_text":"Atari Lynx komplett","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/2013\/04\/Lynx1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":4259,"url":"https:\/\/www.jungsi.de\/en\/retro-atari-vcs-2600\/","url_meta":{"origin":24336,"position":5},"title":"Atari VCS 2600","author":"Jungsi","date":"9. November 2013","format":false,"excerpt":"Nun habe ich endg\u00fcltig die erste Spielkonsole in meiner Sammlung! Dieses Atari VCS 2600 (Baujahr d\u00fcrfte ab 1982 gewesen sein) konnte ich vor dem Wertstoffhof retten. Zusammen mit 18 Modulen bekam ich es in einer Plastikt\u00fcte \u00fcberreicht. Als Erstes war mal gr\u00fcndliches Reinigen angesagt. Mit etwas Seifenlauge und Siliconspray war\u2026","rel":"","context":"In "Atari VCS 2600"","block_context":{"text":"Atari VCS 2600","link":"https:\/\/www.jungsi.de\/en\/category\/retro\/atari\/atari-vcs-2600\/"},"img":{"alt_text":"VCS 2600","src":"https:\/\/i0.wp.com\/www.jungsi.de\/blog\/wp-content\/uploads\/2013\/10\/VCS-2600-nach-Reinigung-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/posts\/24336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/comments?post=24336"}],"version-history":[{"count":0,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/posts\/24336\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/media\/1145"}],"wp:attachment":[{"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/media?parent=24336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/categories?post=24336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jungsi.de\/en\/wp-json\/wp\/v2\/tags?post=24336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}