Comparator
From Wikipedia, the free encyclopedia.

In telecommunication, the term comparator has the following meanings:

1. In analog computing, a functional unit that compares two analog variables and indicates the result of that comparison.
2. A device that compares two items of data and indicates the result of that comparison.
3. A device for determining the dissimilarity of two items such as two pulse patterns or words.

Source: from Federal Standard 1037C

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