Discussion: Multiplexers

 A multiplexer is a device that selects between several analog or digital  input signals and sends this selected input to a single output line. In  this discussion let's discuss four major applications of multiplexers  and also talk about the advantages of using multiplexers in these  applications.  

Answer the following:

1. Data selection
2. Multiplexed displays
3. Logic function generation
4. Simple communications systems