👉 A multiplexer is a type of electronic circuit that allows multiple signals to be processed or combined in parallel. It consists of a set of input/output (I/O) devices connected to a central processing unit (CPU), which can process and communicate between these devices. The output of the multiplexer is typically one of two states: it can either be an input signal that has been passed through the circuit, or it can be an output signal that is received from the other connected devices. For example,