Serial transmission
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In telecommunication, serial transmission or sequential transmission is the sequential transmission of the signal elements of a group representing a character or other entity of data. The characters are transmitted in a sequence over a single line, rather than simultaneously over two or more lines, as in parallel transmission. The sequential elements may be transmitted with or without interruption.
See also 8N1
In computing, bit serial transmission is the transmission of several bits one after another, with all the bits transmitted over a single wire. If operating at the same clock speed, a serial channel is slower than a parallel channel. Modern computer bus technology (e.g. S-ATA, USB) often uses serial transmission since serial digital circuits are easier to design and clock speed can be increased to make up for lower efficiency.
See also serial port, parallel port
