Most modern electronic devices (TVs, VCRs, microwaves and so on) contain an embedded microcontroller. It's basically a dedicated computer. Find out how these devices work and experiment with one on your own.
A Microcontroller is a VLSI (Very Large Scale Integration) Integrated Circuit (IC) that contains electronic computing unit and logic unit (combinedly known as CPU), Memory (Program Memory and Data Memory), I/O Ports (Input / Output Ports) and few other components integrated on a single chip.