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controller

[kuh n-troh-ler] /kənˈtroʊ lər/
noun
1.
an employee, often an officer, of a business firm who checks expenditures, finances, etc.; comptroller.
2.
a person who regulates, directs, or restrains.
3.
British Aeronautics. a dispatcher.
4.
a regulating mechanism; governor.
5.
Also called control unit, processor. Computers. the key component of a peripheral device, as a terminal, printer, or external storage unit, that contains the circuitry necessary to interpret and execute instructions fed into the device.
Origin
1350-1400
1350-1400; Middle English countrollour < Anglo-French countrero(u)llour, Middle French contrerolleur, equivalent to contrerolle duplicate roll (see control) + -eur, -our < Latin -ōr- -or2 or -ātōr- -ator
Related forms
controllership, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for controllers
  • Sega bundled controllers that looked like maracas with samba de amigo.
  • They are increasingly present in portable electronic devices and video game controllers.
British Dictionary definitions for controllers

controller

/kənˈtrəʊlə/
noun
1.
a person who directs, regulates, or restrains
2.
Also called comptroller. a business executive or government officer who is responsible for financial planning, control, etc
3.
the equipment concerned with controlling the operation of an electrical device
Derived Forms
controllership, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for controllers

controller

n.

late 14c., from Anglo-French contrerolleour (late 13c.), Old French contrerelleor (Modern French contrôleur), from Medieval Latin contrarotulator, agent noun from *contra-rotulare (see control (v.)). Mechanical sense is from 1867.

Online Etymology Dictionary, © 2010 Douglas Harper
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13
17
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