MB

What is a Megabyte?

Digital Storage Unit

Definition

A megabyte (MB) is a unit of digital information equal to 1,000,000 bytes (decimal) or 1,048,576 bytes (binary). It is commonly used to measure file sizes.

History

The term 'megabyte' emerged in the 1960s with the growth of computing. The prefix 'mega' means million, though in computing it often refers to 2^20 (1,048,576) bytes.

Common Uses

  • Document and image file sizes
  • Music file sizes (MP3s are typically 3-5 MB)
  • Email attachment limits
  • App and software sizes

Fun Facts

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The first hard drive (1956) had just 5 MB capacity and weighed 1 ton

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A floppy disk held 1.44 MB

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1 MB can store about 500 pages of plain text

All Megabyte Conversions