A kilobyte (KB) is a unit of digital information storage that equals 1,024 bytes. Bytes are the basic building blocks of data in computers, with each byte typically representing a single character, such as a letter or number. Kilobytes are often used to measure the size of small files, like text documents or simple images. In the context of computer memory, kilobytes are part of a larger hierarchy of data sizes. For example, 1,024 kilobytes make up a megabyte (MB), which is commonly used to describe larger files, such as music tracks or high-resolution images. Understanding kilobytes helps users manage their digital storage effectively.