An ExaByte is equivalent
to 1024 PetaBytes,
1,048,576 TeraBytes,
1,073,741,824 GigaBytes,
1,099,511,627,776 MegaBytes,
1,125,899,906,842,624 KiloBytes ,
1,152,921,504,606,846,976 Bytes or 9,223,372,036,854,775,808 Bits
in
the basic form of digital information storage, being
composed of '0's or '1's in any combination.
On a CD or DVD the Bits are represented by 'pits' and 'grounds' (the normal flat
metallic surface of the disc without any holes burnt or punched out of it) with
a transition between a pit and ground being a 1 and a continuous spell within
a pit or a ground being a 0.
On a tape or hard
disc the same principle to a CD applies, but the
pits and grooves are represented magnetically.
As a rough guide,
you can fit 25 GigaBytes on a single-layer Blu-ray
disc, 50 GigaBytes on a dual-layer Blu-ray disc,
4.7 GigaBytes of information on a full size (12cm)
DVD and 0.7 GigaBytes of information on a standard
(12cm) CD.
There are 8 Bits
in a Byte,
1024 Bytes in a Kilobyte (KB),
1024 KiloBytes in a MegaByte (MB),
1024 MegaBytes in a GigaByte (GB),
1024 GigaBytes in a TeraByte (TB),
1024 TeraBytes in a PetaByte,
1024 PetaBytes in an ExaByte, 1024 ExaBytes in a
ZettaByte and 1024 ZettaBytes in a YottaByte.
View other CD
and DVD production FAQs.
