Units used in computers

Unit                                       Equivalent (bytes)

1 kilo byte (KB)                       1,024

1 mega byte (MB)                    1,048,576

1 giga byte (GB)                       1,073,741,824

1 tera byte (TB)                        1,099,511,627,776

1 peta byte  (PB)                       1,125,899,906,842,624