> Acorn and BBC Micro in School? Both failed miserably
Au contraire - most people of my generation (there's a song in there somewhere) learnt about computers courtesy of the BBC Micro. It was either that or queuing up for a very limited time-slot on the school link to the local borough mainframe (via teletype).
MSDOS didn't exist at that point (CP/M was sort of around but cost a fortune). By the time MSDOS was there, the BBC Micro was long dead apart from hobbyist use since (by that time) it was hopelessly outdated and slow.
For the era-challenged, this was in the early 80's. MSDOS didn't come around until the early 90's (I know - I had to herd MSDOS 3.3 - the earliest really usable version).