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Retrocomputing

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  • Do I understand correctly that this was a complete system including custom hardware and software? OP accepted the answer, but I understood the question as looking for software only. Commented Jun 26 at 2:57
  • @KarlKnechtel computers run software, no? Commented Jun 27 at 15:05
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    Sure, but this answer doesn't tell us specifically what software the Harry ran, or if it was ever usable on other hardware. Commented Jun 27 at 15:07
  • While I couldn't find any pictures of the device, the manual makes it more or less clear that this is a custom piece of hardware that does not run on a general purpose computer, not even as a plugin card. It mentions a custom CPU card and a number of specific function cards, and a dedicated overheating protection (fan monitor etc). Maybe that still is what OP is asking about, although adding "software" makes it weird. Commented Jun 27 at 19:58
  • It gets a bit awkward to define the earliest "pure software" video editing program because things changed over time. You can point to something like Avid Media Composer. Today it's software that you can install on any PC. But in the early days you bought "an Avid" much like "a Harry" with some custom hardware. The first public iteration used a Macintosh II as the host, but you couldn't just install the software on an off the shelf Mac and start editing. That came later. So Avid as software dates anywhere from 1989 to maybe 2005, with caveats. Commented Jun 29 at 1:28