Acorn BBC Model B
The Acorn BBC Micro is a computer build by the English company BBC.
The BBC made a documentary around 1979/1980 to inform the public about what was possible with a computer from those days.
After making the documentary, the BBC also wanted to show what was possible with a computer that was available for the public to buy, which resulted in the BBC using computers made by Acorn (Acorn Proton).
The BBC Micro B was used by a very lot of schools in the United Kingdom. Also, the ARM-processor that is developed by BBC, and is still used in recent mobile telephones.