{"id":39499,"date":"2026-05-29T20:00:00","date_gmt":"2026-05-29T18:00:00","guid":{"rendered":"https:\/\/www.jungsi.de\/?p=39499"},"modified":"2026-06-08T15:48:44","modified_gmt":"2026-06-08T13:48:44","slug":"memory-card-atari-portfolio","status":"publish","type":"post","link":"https:\/\/www.jungsi.de\/en\/memory-card-atari-portfolio\/","title":{"rendered":"Memory Card [Atari Portfolio]"},"content":{"rendered":"

Memory cards for the Atari Portfolio: original cards, program cards and my backup workflow<\/strong><\/p>\n\n\n\n

For me, the Atari Portfolio is one of those computers that only feels \u2018complete\u2019 when it\u2019s accompanied by the right accessories. And that clearly includes the cards for the side slot. In my collection, I have four variants: the original memory cards with 32 KB, 64 KB and 128 KB \u2013 as well as a no-name card with 512 KB. Also, whilst putting this article together, I remembered that I also have an original program card labelled \u201cFileManager\/Tutorial\u201d<\/strong>. It is precisely this mix that beautifully illustrates how Atari envisaged the Portfolio concept back then: memory for working \u2013 and software to plug in.<\/p>\n\n\n\n\n\n\n\n

Why memory cards are so important for the Portfolio<\/strong>
Although the Portfolio is a fully-fledged small DOS computer, without removable storage you\u2019ll quickly reach its limits in everyday use. Sure, there\u2019s an internal RAM disk \u2013 but the whole point of the Portfolio is to \u2018work on the go and continue later on a PC\u2019. That\u2019s exactly what the cards are for: save documents, small programmes, configuration files or data whilst on the move, remove the card, back up or swap it on a PC \u2013 done.<\/p>\n\n\n\n

Bee Card: Credit card format predating PCMCIA<\/strong>
Visually, the card slot is somewhat reminiscent of later PCMCIA\/PC cards, but that\u2019s a whole different story when it comes to the Portfolio. Atari uses so-called \u2018Credit Card Memory\u2019 cards here (often referred to as \u2018Bee Cards\u2019). This was an obvious approach in the late 80s: credit card-sized memory, fast, robust and practical for mobile devices. The catch is also what makes it interesting today: it is not simply a PCMCIA card, but a proprietary solution \u2013 and you need the right accessories if you want to read or back up the data outside the Portfolio.<\/p>\n\n\n\n

The original memory cards: 32 KB, 64 KB and 128 KB<\/strong>
These three classic sizes are typical of the Portfolio: 32 KB, 64 KB and 128 KB. From today\u2019s perspective, that seems tiny, but back then it suited the device\u2019s intended purpose very well. Text files, small spreadsheets, simple databases or tools \u2013 that\u2019s what the Portfolio was designed for, and these capacities are surprisingly often sufficient for that.<\/p>\n\n\n\n

The 32 KB card, in particular, has a certain charm: it practically forces you to work the way we used to \u2013 streamlined, efficient, without any \u2018clutter\u2019. The 128 KB card, on the other hand, is the more convenient option, allowing you to keep several projects open at once.<\/p>\n\n\n\n

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

Technology inside: SRAM with backup battery<\/strong>
The classic memory cards in the Portfolio range are generally based on battery-backed SRAM. This has several consequences that are immediately noticeable in everyday use:<\/p>\n\n\n\n