Half Duplex
Half DuplexA duplex circuit allows communication in both directions simultaneously. A half duplex (why don't they call it simplex?) allows communication in one direction at a time. Most of us spend our time in HalfDuplex mode: transmitting and not receiving.
Because simplex is one way only. HalfDuplex is one way at a time. -- OleAndersen
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(last edited December 18, 2000)
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