How did ASCII assign letters a specific number? How did that system came to be? How did early computers adapt to it?

Question

For example: how was the letter A given the binary code of “01000001”? (I really don’t know anything about this but I’m interested)

In: 12

Answer 1

To add to the other comments you may or may not be aware or interested that you can enter ascii codes directly on your keyboard. Hold down the alt key type 6 then 5 on the numeric key pad then let the alt key go and up pops an “A” in your document.