Question

difference between MUX and DEMUX

Answer 1

MUX and DEMUX are like the traffic cops of digital logic where data packets on a data bus are analogous to the cars on a highway.

DEMUX is similar to MUX, just the direction of data flow is opposite.

In most of the systems, they are used together.

Both MUX and DEMUX have wide applications in digital systems.

Some Applications of MUX:

Communication System: It makes the communication more efficient by allowing the transmission of data such as audio, video etc from different channels to a single line. (Read about FDM(Frequency Division Multiplexing) and TDM(Time Division Multiplexing) to know more about it.)Computer Memory: It is used to decrease the number of copper wires from memory to other parts of the computer.

Some Applications of DEMUX:

Communication System: At receiver end, it converts the signal received from MUX into its original form.Arithmetic Logic Unit(ALU): The output of an ALU is fed into the input of a DEMUX and the output of the DEMUX is connected to multiple registers. This helps in storing the output of ALU into multiple registers.