Computer storage units Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB

Source: Internet
Author: User

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 (0,1)

1 KB = 1,024 Bytes (size of a shortcut)

1 MB = 1,024 KB = 1,048,576 Bytes (size of a floppy disk)

1 GB = 1,024 MB = 1,048,576 KB = 1,073,741,824 Bytes (size of an AVI movie)

1 TB = 1,024 GB = 1,048,576 MB = 1,073,741,824 KB = 1,099,511,627,776 Bytes (size of a tape drive) the memory of Tianhe one is 98TB

The following few are really indescribable, I have not been exposed to such a large capacity of equipment. The total shared disk capacity of Tianhe one is 1PB

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

Byte, KB, MB, GB, TB, PB, EB, ZB, YB, DB, NB know how much

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

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