A "MiB" stands for "Mebibyte," which is a unit of digital information storage. It is equal to 1,048,576 bytes, or 2^20 bytes. The term is part of the binary system used in computing, where data is often measured in powers of two. The Mebibyte is commonly used to describe file sizes and memory capacity in computer systems. It is important to distinguish it from a "MB" or "Megabyte," which is based on the decimal system and equals 1,000,000 bytes. This distinction helps avoid confusion in data measurement.