Two Bits

In the context of computing, "two bits" refers to a unit of data storage or transmission that consists of exactly two binary digits (bits). Each bit can have a value of either 0 or 1. Therefore, two bits can represent four distinct values: 00, 01, 10, and 11, which can be used to encode four different states or pieces of information. This is often used to represent states such as on/off with a higher degree of redundancy or to represent a very limited range of numerical values, typically 0 through 3. Though the term 'two bits' is conceptually straightforward, its explicit usage to describe a discrete data unit is far less common than terms such as 'bit', 'byte', or 'nibble'. It is more often encountered when discussing the capability of a system or component to represent a value using two bits.