Question

why in computer color spelling like this but in real life colour like this​

Answer 1

Answer:

Colour” is the preferred spelling in Britain and the former Commonwealth countries. ... Many articles are writing "coronavirus" as one word, but word editors are ... Color is the British spelling, just like labour.

Answer 2

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• “Color” is preferred in the United States, partly owing to the influence of philologist Noah Webster, however many American spelling and grammatical conventions originated in earlier forms of English before modern spelling conventions originated.