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#atari800

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I was reminded today of the ATARI 1200XL I had back in the day. It was my first computer, and I spent many hours programming graphics and games in BASIC, and eventually in Assembly with the ATARI Macro Assembler, and playing Alternate Reality: The City...

In 7th grade, I also built a voice synthesizer for it using a SP0256-AL2 sound chip, and then interfaced the ATARI with a Big Trak, allowing the computer to drive the programmable tank and have it follow people around. Good times!

#AtariST and #Atari 8-bit users, here is a playlist of videos on PeerTube about these computers:

:atari: fedi.video/w/p/u7E2A1QSFkQETNk

- If you're on a phone, scroll first two video titles at the bottom to see rest of the playlist.

- If you're on a computer, choose a video from the playlist on the right.

- If you're watching embedded, click ⏭️ or ⏮️ to see next or previous videos in the playlist.

cc @atarist

I inadvertently printed out two complete copies of "Mapping the Atari", 1985 revised edition, double-sided, in colour (as much as there is) scaled to A4.

I've bound them both (with those springy plastic things) and put a cardboard cover on the back and a plastic film on the front, like a corporate brochure.

I'm heading to #RetroFest2025. I have brought a copy, if anyone who's going would like it!

I'm going back through the @ataripodcast library and heard @savetz mention a fun interview with Mark Knutsen, who won first prize at a science fair with his simulation of the gravitational interactions between four stars, which he implemented in #ValFORTH on an #Atari800 after reading an article by A. K. Dewdney in the January 1986 #ScientificAmerican magazine, outlining how star cluster behaviour is investigated using computational models.

The interview with Mark Knutsen is on YouTube, where he demonstrates his program running in an emulator: youtube.com/watch?v=OwLgCPqi8F

The same video on archive.org, if YouTube gives you the ick: archive.org/details/mark-knuts

Mark's software as Atari disk images: forums.atariage.com/topic/3242

The podcast episode on which I heard Kay's mention of the interview: ataripodcast.libsyn.com/antic-

The ValFORTH documentation, if you're inspired to explore further: archive.org/details/ValFORTHDo

Thank you @savetz (and @floppydays!) for your time and effort arranging, recording, editing and publishing these interviews. It's important social history of a unique time and circumstance.