199? Mark Zuckerberg
Platform: Atari 400/800
Something a little bit different, highlighted thanks to Bertrand / Atari Mania. This was an early utility that was created by Mark Zuckerberg of Facebook/Meta fame.
It was a communications/radio/electronics utility which may have only been used at home. However, it is currently missing and not yet digitally preserved.
Mark had apparently created the utility when he was just 12 years old on his Atari 800, and it was used by his family around the house and within his Dad’s dental surgery.
Its very unlikely, but if you have a copy and are able to share to help preserve, then please do get in touch! With thanks to Bertrand/Atari Mania for highlighting.