from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).
- n. One quadrillion bytes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One quadrillion (1,000,000,000,000,000) bytes. SI symbol: PB.
- n. 1,125,899,906,842,624 bytes or 10245, or 250. This capacity may be expressed unambiguously as a pebibyte. SI symbol: PiB, computing symbol: PB.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a unit of information equal to 1000 terabytes or 10^15 bytes
- n. a unit of information equal to 1024 tebibytes or 2^50 bytes
The Internet Archive has just installed its first Petabox, "a machine designed to safely store and process one petabyte of information (a petabyte is a million gigabytes)."
Do the math and you will see (a petabyte is 1024 terabytes a terabyte is 1020 gigabytes and so on) in order to just get 1 petabyte the hub would need 1024 users sharing a terabyte) I think anyone familiar with shares knows how unlikely this scenario is.
(A petabyte is the equivalent of a stack of DVDs stretching from here to the moon.)
A petabyte is the equivalent of 223,101 DVDs, or over
(For those of us who can't inherently imagine the vastness of a petabyte, IBM noted that a petabyte is the equivalent of
From this summer, they are expecting to collect a petabyte of data per year.
These solutions deliver rapid access to individual records within extremely large data sets — all aim (or claim) to reach petabyte scale and up to billions of rows and millions of columns.
They were petabyte memory blocks, one quadrillion bytes each, two to the fiftieth power, all of it static, immune to accidental loss.
The state of the art in this favors centralization of data -- think Google ranking, other people's playlists, blogshares, and other social constructs that can't be created on all the private data you'll store on your 200 petabyte iPod in 5 years.
With its planned acquisition of Bycast, NetApp is taking aim now at what it sees as a fast-growing market: multi-petabyte global repositories of unstructured data such as video.