I remember in the 1980s entering a computer program into my BBC Micro after watching The Computer Programme[1] and finding out that it had dual spellings of key

I remember in the 1980s entering a computer program into my BBC Micro after watching The Computer Programme[1] and finding out that it had dual spellings of key words like COLOUR/COLOR in its BASIC. So even before the internet was widely used people in the UK we’re aware of the problem. 1. See how I slipped that one in there?