[pet-uh-bahyt] /ˈpɛt əˌbaɪt/
2 50 , or 1,024 .
(loosely) 10 15 or a million billion bytes. Symbol: PB.
(computing) 1015 or 250 bytes
2^50 = 1,125,899,906,842,624 bytes = 1024 terabytes or roughly 10^15 bytes. 1024 petabytes is one exabyte.
Google is estimated (http://www.cio.com/article/135700/Seven_Wonders_of_the_IT_World/3) to store about 200 petabytes of data in about 25 data centers around the world.
[pe-tahkh tik-vah] /ˈpɛ tɑx ˈtɪk vɑ/ noun 1. a city in W Israel, NE of Tel Aviv.
unit 10^15 flops or 1000 teraflops. No computer has achieved this performance yet. (1997-07-21)
[pet-uh-hurts] /ˈpɛt əˌhɜrts/ noun 1. one quadrillion (10 15) hertz. Abbreviation: PHz.
[pey-tan] /peɪˈtɛ̃/ noun 1. Henri Philippe Omer [ahn-ree fee-leep aw-mer] /ɑ̃ˈri fiˈlip ɔˈmɛr/ (Show IPA), 1856–1951, marshal of France: premier of the Vichy government 1940–44. /French petɛ̃/ noun 1. Henri Philippe Omer (ɑ̃ri filip ɔmɛr). 1856–1951, French marshal, noted for his victory at Verdun (1916) in World War I and his leadership of the pro-Nazi […]