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The first multiplexer and demultiplexer were built with relais. With modern semiconductor technology today multiplexers and demultiplexers are build into integrated circuits. In addition, they can be integrated into microprocessors.

Multiplexer and demultiplexer can be found in a variety of applications...

• Telephone systems
• Satellite communication
• Computer memory

In this first part you build in 10 experiments multiplexers and demultiplexers. Thereby you use both digital and analog signals.

In the second part (Go on...) you learn in another 6 experiments some examples of multiplexer and demultiplexer as integrated circuits.

Let's go...and have fun...