Sunday, March 31, 2013

Lesson 27: Data Measurement

BYTES to BITS conversion.
How many megabytes in 1 GB?

MEASUREMENT CHART
(http://www.wu.ece.ufl.edu/links/dataRate/DataMeasurementChart.html)


UnitValueSize
bit (b)0 or 11/8 of a byte
byte (B)8 bits1 byte
kilobyte (KB)10001 bytes1,000 bytes
megabyte (MB)10002 bytes1,000,000 bytes
gigabyte (GB)10003 bytes1,000,000,000 bytes
terabyte (TB)10004 bytes1,000,000,000,000 bytes
petabyte (PB)10005 bytes1,000,000,000,000,000 bytes
exabyte (EB)10006 bytes1,000,000,000,000,000,000 bytes
zettabyte (ZB)10007 bytes1,000,000,000,000,000,000,000 bytes
yottabyte (YB)10008 bytes1,000,000,000,000,000,000,000,000 bytes

NOTE: A lowercase "b" is used as an abbreviation for bits, while an uppercase "B" represents bytes. This is an important distinction, since a byte is 8x as large as a bit.
For example, 100 KB (kilobytes) = 800 Kb (kilobits).

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