pirx Posted January 14, 2023 Share Posted January 14, 2023 I know of 3 variations of 5200 ROMs: - Atari 5200 OS (4-port) - Atari 5200 OS (2-port) - AltirraOS for 5200 Are there any more in the wild? Asking for a friend. Quote Link to comment Share on other sites More sharing options...
+x=usr(1536) Posted January 15, 2023 Share Posted January 15, 2023 My understanding is that a PAL version of the OS had been developed, but that it hasn't been seen in the wild yet. If I had to guess, it was probably for the 4-port units given how quickly plans for PAL units were scrapped. Whether or not it's lost or is just waiting to be catalogued is another question. It may be a goner, it may never have existed, or it may be in salvaged Atari documentation and relics taken from one of the clearance auctions (or dumpsters) when the company folded. 1 Quote Link to comment Share on other sites More sharing options...
+Mitch Posted January 15, 2023 Share Posted January 15, 2023 The, so called, 2 port BIOS is the one with PAL support. There just wasn't a PAL 5200 or games to support it. Mitch 3 Quote Link to comment Share on other sites More sharing options...
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