A storage unit where hard drive manufacturers define 1 MB as 1,000,000 bytes, while operating systems traditionally treat it as 1,048,576 bytes (now recommended to use MiB for binary). Used for file sizes, memory, and photo storage. Commonly referred to as “MB” in daily use in China, though confusion between decimal and binary interpretations persists.

A storage unit where hard drive manufacturers define 1 MB as 1,000,000 bytes, while operating systems traditionally treat it as 1,048,576 bytes (now recommended to use MiB for binary). Used for file sizes, memory, and photo storage. Commonly referred to as “MB” in daily use in China, though confusion between decimal and binary interpretations persists.