Megabyte (MB)
Definition: A megabyte (symbol: MB) is a multiple of the unit byte for digital information. The prefix mega means 10^6 in the SI. Therefore, one megabyte is one million bytes. In the binary system, 1 MB is often defined as 1,048,576 bytes.
History/origin: The megabyte was introduced as part of the metric system in 1795. It was originally defined as 1,000,000 bytes. In the binary system, it is defined as 1,048,576 bytes.
Current use: The megabyte is commonly used to measure the size of files, such as high-resolution images, short audio clips, and documents.
Byte (B)
Definition: A byte (symbol: B) is a unit of digital information that most commonly consists of eight bits. It is the basic unit of storage in a computer system.
History/origin: The byte was introduced in the 1950s as a unit of digital information. It was originally based on the number of bits needed to represent a single character.
Current use: The byte is used globally to measure the size of files, storage capacity, and data transfer rates.