Frequency Shift Keying (FSK) Definition/Meaning:
A method for representing digital data with analog
signals by using a change in the frequency of the carrier to represent
information. It is thus a type of modulation. FSK with two frequencies,
corresponding to the digital values 0 and 1 is the primary method
used by low-speed modems.
See also digital data transmission.
Front-end processor An I/O processor that is used to format and/or process
input data. The term is sometimes used to refer to a communication processor.
Compare back-end processor.
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