A byte is a unit of digital information that typically consists of eight bits. A bit is the smallest unit of data in computing, representing a binary value of either 0 or 1. Bytes are used to encode a wide variety of data types, including characters, numbers, and images, making them fundamental to computer systems and data storage. In computing, bytes are often used to measure file sizes and memory capacity. For example, a kilobyte (KB) is equal to 1,024 bytes, while a megabyte (MB) is 1,024 kilobytes. Understanding bytes is essential for working with technology, as they form the basis of how data is processed and stored in devices like computers, smartphones, and servers.