Bits and Bytes Numbers
May 21, 2012Lots of Bytes
When you start talking about lots of bytes, you get into prefixes like kilo, mega and giga, as in kilobyte, megabyte and gigabyte (also shortened to K, M and G, as in Kbytes, Mbytes and Gbytes or KB, MB and GB). The following table shows the multipliers:
|
Name |
Abbr. |
Size |
| Kilo | K | 2^10 = 1,024 |
| Mega | M | 2^20 = 1,048,576 |
| Giga | G | 2^30 = 1,073,741,824 |
| Tera | T | 2^40 = 1,099,511,627,776 |
| Peta | P | 2^50 = 1,125,899,906,842,624 |
| Exa | E | 2^60 = 1,152,921,504,606,846,976 |
| Zetta | Z | 2^70 = 1,180,591,620,717,411,303,424 |
| Yotta | Y | 2^80 = 1,208,925,819,614,629,174,706,176 |
Perspective
| Kilobyte | 2 KB: A typewritten page |
| Megabyte | 5 MB: The complete works of Shakespeare |
| Gigabyte | 1 GB: A pickup truck full of books |
| Terabyte | 1 TB: 50,000 trees made into paper and printed |
| Petabyte | 200 PB: All printed material |
| Exabyte | 5 EB: All the words ever spoken |
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