Upper case are capitol letters like ABC and so on. Lower case are the smaller letter like abc and so on. The name comes from the day of hand set type when the letters were kept in drawers know as cases. The drawers on the top had the capitol letters and the drawers on the bottom had the smaller letters.
Uppercase letters= Majuscules in Spanish
Lowercase letters= Minuscule in Spanish
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What mean by uppercase n lowercase letter ?
Lower Case Letter
ABCDEFGHIJKLMNOPQRSTUVWXYZ those where capital letters. Lowercase are abcdefghijklmnopqrstuvwxyz. You can get that on a computer by holding shift down and pressing a letter or you can hit the caps Lock but that keeps you on uppercase letters until you press it again
Capitalize only has the first letter uppercased.
UPPERCASES HAS AL LETTERS UPPERCASED.
lowercase has all letters lowercased.
upperCase letter is Capitals letter like ‘A’
LowerCase letter is Small letter like ‘a’
If you use an uppercase N, you run into infringement problems with NBC, who used an Uppercase N for a while
Uppercase letters = capital letters ABCDEF…..
Lowercase letter = capital letters abcdef……