Plural: acoustic couplers
Device that enables computer data to be transmitted and received through a normal telephone handset; the handset rests on the coupler to make the connection. A small speaker within the device is used to convert the computer's digital output data into sound signals, which are then picked up by the handset and transmitted through the telephone system. At the receiving telephone, a second acoustic coupler or modem converts the sound signals back into digital data for input into a computer.
Unlike a modem, an acoustic coupler does not require direct connection to the telephone system. However, interference from background noise means that the quality of transmission is poorer than with a modem, and more errors are likely to arise.
An archaic device once used in computer communications. The coupler was a cradle-like instrument into which the headset of a telephone was placed. Its function was somewhat similar to the job now done by modems.
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Staromodni modemski uređaj koji je radio tako što je telefonska slušalica stavljana na dva gumena nosača. Ranije je bio neophodan, pošto niste mogli da uključite modem u telefonsku priključnicu u zidu (pošto je nije bilo). U nekim zemljama se još uvek dosta koriste akustički priključci, a koriste se i za prenosne računare kada vam telefonska utičnica nije dostupna.