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kilobyte, megabyte, gigabyte
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Definition: A kilobyte equals 1024 (or 210) bytes. Likewise, a megabyte (MB) equals 1024 KB or 220 bytes and a gigabyte (GB) equals 1024 MB or 230 bytes.

 Related Terms
• baud
• bps
• Kbps
• modem

The meaning of the words kilobyte, megabyte, and gigabyte change when they are used in the context of network data rates. A rate of one kilobyte per second (KBps) equals 1000 (not 1024) bytes per second. One megabyte per second (MBps) equals one million (106, not 220) bytes per second. One gigabyte per second (GBps) equals one billion (109, not 230) bytes per second.

To avoid some of this confusion, networkers typically measure data rates in bits per second (bps) rather than bytes per second (Bps) and use the terms kilobyte, megabyte, and gigabyte only when referring to disk space.

Examples: "This eight gigabyte disk only has 200 megabytes of free space left."

Also Known As: K, KB, M, MB, "meg," G, GB, "gig"

Related Resources:

Networking 101
Start from the beginning to learn all about computer networking.
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