High Quality Content by WIKIPEDIA articles! In computer telecommunications, echo is the display or return of sent data at or to the sending end of a transmission. Echo can be either local echo, where the sending device itself displays the sent data, or remote echo, where the receiving device returns the sent data that it receives to the sender (which is of course simply no local echo from the point of view of the sending device itself). That latter, when used as a form of error detection to determine that data received at the remote end of a communications line are the same as data sent, is also known as echoplex, echo check, or loop check. When two modems are communicating in echoplex mode, for example, the remote modem echoes whatever it receives from the local modem. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной...

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