Case sensitivity
From Wikislippy
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Current revision as of 23:32, 12 March 2009
Text sometimes exhibits case sensitivity; that is, words can differ in meaning based on differing use of uppercase and lowercase letters. Words with capital letters don't always have the same meaning when written with lowercase letters. For example, Bill is the first name of former U.S. president Bill Clinton, who could sign a bill (which is a proposed law that was approved by Congress). And a Polish person can use polish to clean something.
When a computer program compares two words to decide whether they are the same, it might or might not apply case sensitivity, depending upon the programmer’s intent.
Case sensitivity is relevant to:
- usernames
- passwords
- filenames
- tags
- commands
- variable names
- website addresses
- searching for a text string within electronic text
