In digital electronic circuits, electrical signals are discrete values, which do not depend on time, to represent logical and numeric values. These values represent the information being processed. The transistor is one of the main components used in digital circuits, and combinations thereof can be used to create logic gates. These logic gates can be used in combination to create a desired output of a post.
Larger circuits may contain several complex components such as FPGAs or microprocessors. These and many other components can be interconnected to create a large circuit that operates on large amounts of data.
Examples of electronic equipment that use digital circuits include digital watches, calculators, PDAs and computers.