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单词 controller
释义 controller
 —controllership,  n.  
 /keuhn troh"leuhr/,  n.  
  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.  Brit. Aeron.   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.
 [1350-1400; ME countrollour < AF countrero(u)llour, MF contrerolleur, equiv. to contrerolle duplicate roll (see CONTROL) + -eur, -our < L -or- -OR2 or -ator- -ATOR]
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