Depends what you're comparing it against though :)
Today (including smart phones) you're talking about multiple computers per household, probably more computers in the house than there are people. So one per "40ish people" was (compared to now) "rare".
So, in my original post when I said "rare" - I meant "a few per class". In my 80's childhood there were maybe 2 or 3 people in the class who had a computer (of any kind) at home. The school had 2 computers (BBC Micro) for student access (for over 600 students.) Most were completely uninterested.
Bear in mind that the numbers in the UK and surrounds were likely higher than that because the UK was an epicentre of home-computer development. Sinclair, Acorn etc were all at their height so penetration in that market was likely a bit higher.
So, in my original post when I said "rare" - I meant "a few per class". In my 80's childhood there were maybe 2 or 3 people in the class who had a computer (of any kind) at home. The school had 2 computers (BBC Micro) for student access (for over 600 students.) Most were completely uninterested.
Bear in mind that the numbers in the UK and surrounds were likely higher than that because the UK was an epicentre of home-computer development. Sinclair, Acorn etc were all at their height so penetration in that market was likely a bit higher.