comparator - Engineering. any instrument that compares the measurement of a gauged part with a fixed standard of measurement for the part. Cartography. a precision optical instrument used to determine the rec- tangular coordinates of a point with respect to a point on any other plane surface, such as a photograph. Control Systems. a device that continuously compares the value of a quantity to the value desired. Computer Technology. 1. a combinational electronic circuit that compares two numbers and determines their relative magnitude.a combinational electronic circuit that compares two numbers and determines their relative magnitude. 2. a device used to detect data transcription errors by comparing two instances of the same information.a device used to detect data transcription errors by comparing two instances of the same information; дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр http://www.harcourt.com/dictionary/def/2/2/8/2/2282800.html;
