Answer: In electronics, a multiplexer, also known as a data selector, is a device that selects between several analogs or digital input signals and forwards the selected input to a single output line. The selection is directed by a separate set of digital inputs known as select lines.
Types of multiplexers:
-Time Division Multiplexer.
-Statistical Multiplexer.
-Inverse Multiplexer.
-Space Division Multiplexer.
-Frequency Division Multiplexer.
-Wavelength Division Multiplexer.