IT Governance, Risk, and Compliance

Sep 20 2012   1:09AM GMT

A Few Fundamentals of Networking Electronically Encoded Data – Part III

Robert Davis Robert Davis Profile: Robert Davis

Packet assembly and disassembly between telecommunication links

Input or output (I/O) channels are paths along which datum are transmitted to and from primary storage. These communication channels also handle the transfer of datum to and from I/O devices. As a result, this function can relieve the Central Processing Unit (CPU) of responsibility for data transfers to and from I/O devices, increase the number of input and output operations that can be performed simultaneously and reduce the time a CPU must wait for datum to arrive from, or sent to, an I/O device.

A common IT transmission technique for telecommunications is multiplexing. Multiplexing is the process of transmitting multiple (but separate) signals simultaneously over a single channel or line. The two main types of multiplexing methods are time-division multiplexing (TDM) and frequency-division multiplexing (FDM). Because the signals are sent in one complex transmission, the receiving end has to separate the individual signals through de-multiplexing.

View Part I of the A Few Fundamentals of Networking Electronically Encoded Data series here


Post Note: “A Few Fundamentals of Networking Electronically Encoded Data – Part III” was originally published through under the title “A Few Fundamentals of Networking Electronically Encoded Data”

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