What is MB?

The abbreviation "MB" most commonly refers to Megabyte, a unit of digital information storage. One megabyte is equal to 1,048,576 bytes (2^20 bytes) or 1,000 kilobytes. It's a measure of file size, storage capacity (like RAM or hard drive space), and data transfer rates. Although now relatively small compared to modern file sizes, it was a standard unit in the past and is still used to describe smaller files or memory capacities.