A Mebibyte (MiB) is a unit of digital information storage that equals 1,048,576 bytes. It is based on the binary system, where data is organized in powers of two. The term was created to avoid confusion with the similar-sounding Megabyte (MB), which is often defined as 1,000,000 bytes in the decimal system. Mebibytes are commonly used in computing and data storage contexts, such as in operating systems and file sizes. Understanding the difference between Mebibytes and Megabytes is important for accurately assessing storage capacity and data transfer rates in devices like hard drives and memory cards.