Not sure I agree that
"the home computer revolution would never have happened". I think it would have taken longer, cost consumers more and been dominated solely by American and eventually Japanese giants.
And that would have been a shame, because then we'd have missed out on all the idiosyncratic machines from UK companies like Memotech, Jupiter, Oric, Dragon, MGT, Enterprise, Tatung (ok, so UK designed), etc.
Still, he was a true British eccentric and obviously very clever and deserves his place in the pantheon of Great British Inventors and Entrepreneurs, if there is such a thing!
At the very least: he's up there in the Valhalla for 80s computer designers, where they can drink Bovril all day and design ASICs late into the night and worry about cost reduction, case design and bundled software at future date that never comes!
RIP.