Today's computer programs sometimes require lowercase and uppercase letters to be entered, but when computers were first introduced, all uppercase letters were used for program input. Various users ...
Mental Floss on MSN
The Surprisingly Literal Reason We Call Letters “Uppercase” and “Lowercase”
The origin of the terms uppercase and lowercase might seem pretty self-explanatory. Upper and lower must be references to the height of the letters, and the use of case is presumably an offshoot of ...
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