Comparator

A comparator generally designates a technical functional unit that compares two or more variables and delivers a result formed from them. The term is used in different areas:

• For comparing leveling staffs (checking all graduation marks on an optical bench)
• As a comparator (digital technology) for comparing digital signals
• In analog circuit technology, a comparator (analog technology) is used to compare electrical voltages
• As a stereo comparator for determining image coordinates on photographic plates or films.

See also:

Wiktionary: Comparator  - explanations of meanings, word origins, synonyms, translations

This is a disambiguation page for differentiating between several terms identified with the same word.