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acoustic coupler

American  

noun

Computers.
  1. a modem designed to connect a telephone handset to a computer terminal or processor.


acoustic coupler British  

noun

  1. computing a device converting computer-data signals into acoustic form for transmission down a telephone line, through the handset microphone See also modem

"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

Etymology

Origin of acoustic coupler

First recorded in 1965–70