Computer storage Units

Computer storage units: Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB How much do you know?

In the computer newspaper, the Dutch bank's 20 data centers have about 7PB of disk and more than 20PB of tape storage, and the annual growth of 50%~70% reserves,

So want to see how much PB, calculate 27pb about 400,000 80 of the hard disk size.

1Byte = 8 Bit
1 KB = 1,024 Bytes
1 MB = 1,024 KB = 1,048,576 Bytes
1 GB = 1,024 MB = 1,048,576 KB = 1,073,741,824 Bytes
1 TB = 1,024 GB = 1,048,576 MB = 1,073,741,824 KB = 1,099,511,627,776 Bytes
1 PB = 1,024 TB = 1,048,576 GB =1,125,899,906,842,624 Bytes (13107.2 x 80G
1 EB = 1,024 PB = 1,048,576 TB = 1,152,921,504,606,846,976 Bytes
1 ZB = 1,024 EB = 1,180,591,620,717,411,303,424 Bytes
1 YB = 1,024 ZB = 1,208,925,819,614,629,174,706,176 Bytes

The following section turns from: http://www.oiegg.com/viewthread.php?tid=512438Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB How much do you know?The smallest basic unit is byte should not have many people do not know, the following first in order to give all units
Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB
I only know the top five, and most people know it, according to the rate of 1024 calculation
1tb=2 's 40-Time Square byte=1099511627776 Byte
1pb=2 's 50-time Square Byte=1125899906842624byte
1eb=2 60-Time Square byte= 1152921504606846976 Byte
1zb=2 70-Time Square byte= 1180591620717411303424 Byte
1yb=2 80-Time Square byte= 1208925819614629174706176 Byte
1db=2 90-Time Square byte= 1237940039285380274899124224 Byte
1nb=2 100-Time Square byte= 1267650600228229401496703205376 Byte
In the calculation, found XP comes with the calculator has no way to forget, do not have to re-calculate a calculator, sweat
Light look at these numbers estimate you have no feeling, that now even a good imagination, the following take NB as an example (why NB, it can be used to this unit of the place is very NB. ）
is about to step into the TB era, now the 1TB HDD standard weight is 670g (almost)
1nb=2 60 x tb=1152921504606846976tb=1152921504606846976 1TB HDD
The total weight is about 772,457,408,090,000 tons, the largest ship-knock resistance of the present, the weight of 560,000 tons
That is to say, the hard drive that stores 1NB of data will have a minimum of 1 379 388 229 times to send this data to the location, and an estimated 1.4 billion Knox-resistance will be reimbursed.
Now understand the concept of 1NB, is not well-deserved NB, human development so many years to the TB storage era, do not know the world before the destruction, can develop to NB ERA it ... Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB