Unit |
Value |
Example |
Kilobytes (KB) |
1,000 bytes |
a paragraph of a text document |
Megabytes (MB) |
1,000 Kilobytes |
a small novel |
Gigabytes (GB) |
1,000 Megabytes |
Beethoven’s 5th Symphony |
Terabytes (TB) |
1,000 Gigabytes |
all the X-rays in a large hospital |
Petabytes (PB) |
1,000 Terabytes |
half the contents of all US academic research libraries
|
Exabytes (EB) |
1,000 Petabytes |
about one fifth of the words people have ever spoken |
Zettabytes (ZB) |
1,000 Exabytes |
as much information as there are grains of sand on all the world’s beaches |
Yottabytes (YB) |
1,000 Zettabytes |
as much information as there are atoms in 7,000 human bodies |