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[edit] Binary Measuring Capacity

Binary capacity is measured by bits (binary digits) and bytes.

The binary system has only two digits, the 0 and the 1. The capacity is referred to by bits and bytes. A group of 8 bits is equal to one byte. There are 256 combinations of 8 bits available.

A kilobyte (KB)is equal to 1,000 bytes. A megabyte (MB)is equal to 1 million bytes. 1 MB equals about 500 pages of text. A gigabyte (GB)is equal to 1 billion bytes. A Terabyte is equal to 1 trillion bytes. 1 TB is about 500 million pages of text. A Petabyte is equal to 1 quadrillion bytes. And the most is the Exabyte which equals 1 quintillion bytes.