The term 'electronics' refers to a large number of different phenomena and devices in which useful electrical effects are achieved through control of the motion of electrons.

In the early part of the twentieth century, the control of electron motion was achieved primarily through the development of vacuum tubes. Many sophisticated variations of this basic principle were put into practice and made possible the beginning of the 'electronic age'.

A representative partial list of electronic devices today includes such diverse applications as rectifiers, amplifiers, integrated circuits, memories, microwave sources and receivers, light-emitting devices, light-detecting devices and solar cells to convert solar energy into electricity.

On this page you will find:

• left-hand links to GCSE and A level information for electronics
• a right-hand link to another website related to electronics.