Digital electronics are electronic circuits that represent signals as a sequence of discrete values known as digital signals. This is in contrast to analog electronics which handles a continuously variable signal.

Today, the most common kind of systems built is two-valued systems. These systems are represented by two voltage bands: A reference value (also known as ground, low, and zero volt) and a supply voltage. These voltage bands correspond to 'true' (also known as '0', 'low', or 'lo') and 'false' (also commonly called '1', 'high', or 'hi') truth values in Boolean algebra.

Types of circuits

This section is empty; you can help add the missing info by editing this page.

This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information.