But The Mighty Micro by Christopher Evans is required reading
https://archive.org/details/mightymicro0000evan
Also a profoundly influential television series
https://www.youtube.com/watch?v=WiiQrLMqsm8&list=PL13dwmxpaKl5JJyC4L09uf_PFXkn6FlGA&index=1
You should also watch Now The Chips are Down
https://www.bbc.co.uk/iplayer/episode/p01z4rrj/horizon-19771978-now-the-chips-are-down
Without Evans' book, we wouldn't have had the BBC Micro, so Acorn would have been obscure, and ARM would not have happened.
Also strongly recommend Tilly Blyth's The Legacy of the BBC Micro
https://media.nesta.org.uk/documents/the_legacy_of_bbc_micro.pdf