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case-sensitive
Last modified: Thursday, February 19, 2004
(adj.) Describes a program's ability to distinguish between uppercase (capital) and lowercase (small) letters.
A case-sensitive program that expects you to enter all commands in uppercase will not respond correctly if you enter one or more characters in lowercase. It will treat the command RUN differently from run. Programs that do not distinguish between uppercase and lowercase are said to be case-insensitive.