Unit B
Name byte
Category Data
Details A byte (B) is a unit of data in computer systems and digital communication. It represents a fundamental building block for storing and processing digital information. Traditionally, the word "byte" is used to denote a group of 8 bits, where a bit is the most basic unit of data in digital systems, having only two values: 0 or 1. Bytes are commonly used to quantify the size of digital files or memory capacities, as well as to measure data transmission rates.

A byte can represent a wide range of values or symbols, such as numbers, letters, or special characters. For example, in the widely used system of character encoding called ASCII (American Standard Code for Information Interchange), each distinct character is assigned a unique byte value. Consequently, a single byte allows for 256 different combinations (2^8), which is sufficient to cover the alphanumeric characters and most common punctuation and control codes.

In the field of data, bytes are often combined with metric prefixes to express larger quantities, such as kilobyte (KB, 1,024 bytes), megabyte (MB, 1,024 KB), gigabyte (GB, 1,024 MB), terabyte (TB, 1,024 GB), and so on. These units are widely used for measuring data storage space or data transfer rates (e.g., hard disk capacity, file size, or internet connection speed).