Tuesday, January 18, 2011

State the unit of data measurement

1

Bit

Single Binary Digit (1 or 0)

2

Byte

1 Byte = 8 bits

3

Kilobyte (KB)

1 KB = 1024 bytes or 1 KB = 2 10 bytes

4

Megabyte

1 MB = 1 048 576 bytes or 1 MB = 2 20 bytes

1 MB = 1024 KB

5

Gigabyte

1 GB = 1 073 741 824 bytes or 1 GB = 2 30 bytes

6

Terabyte (TB)

1 TB = 1 099 511 627 776 bytes or 1 TB = 2 40 bytes


Additional notes: A petabyte (PB) is 1,024TB. Indiana University is now building storage systems capable of holding petabytes of data. An exabyte (EB) is 1,024PB. A zettabyte (ZB) is 1,024EB. Finally, a yottabyte (YB) is 1,024ZB.

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