A transistor is a semiconductor device used to amplify or switch electronic signals and power.
Transistors are made out of semiconductor material, meaning that they are higher in resistance than typical resistant materials but lower than insulators.
There are two basic types of transistors. Bipolar transistors use both electron and hole carriers, whilst field-effect transistors use only one kind of charge carrier.
A transistor is vital for the functioning of modern electronic devices since it essentially provides power.
