Calculation method of computer hard disk integer partition

Many computer users for the computer hard disk integer partition calculation method is not very understanding, therefore, today's small series to share about the hard disk integer partition calculation method knowledge, they include: Hard disk integer partition of the general calculation method and hard disk partition integer g calculation formula. Hope everyone will like it!

Computer hard disk

Hard disk Integer partition calculation method general algorithm: Partition size = (partition size-1) x4+1024x partition size.

If the formula is calculated according to the hard disk partition integer g: (X-1) *4+1024*x=y where X is the value of the integer partition you want to get, the unit is G,y is the number you should enter when partitioning, the unit is m,

For example 40gb= (40-1) X4+1024X40=41116MB According to this calculation method:

5g=5136mb

10g=10276mb

15g=15416mb

20g=20556mb

30g=30836mb

40g=41116mb

Within 30G, enter the above data, such as 10G you enter 10276, In Windows Explorer, the display is just 10.00GB, while in the management tool-the Disk Management interface display is 10.04GB, if it is 40G you enter 41116, then the Windows Explorer display just 40.01GB.

Therefore, the above formula is not very accurate.

The most accurate hard disk partitioning algorithm is as follows (from a web search):

The hard disk generally has 255 heads, 63 sectors, so the size of each cylinder is:

512byte x 255 x 63=8225280bytes =7.84423828125 MB

If you want to divide 40GB, then 40X1024MB=40960MB

Requires a cylinder number of 40960÷7.84423828125=5221.66

Takes an integer as 5,222 cylinders

Should divide m number to 5222X7.84423828125=40962.6123046875MB

No matter how many points after the decimal point into 1, that is, 40963mb,windows is considered to be 40GB.

This method is NTFS and FAT32 generic.

The following is an accurate calculation with 10GB to 200GB full 10GB increments:

10GB = 10245MB

20GB = 20482MB

30GB = 30726MB

40GB = 40963MB

50GB = 51208MB

60GB = 61444MB

70GB = 71681MB

80GB = 81926MB

90GB = 92162MB

100GB = 102407MB

110GB = 112644MB

120GB = 122888MB

130GB = 133125MB

140GB = 143362MB

150GB = 153606MB

160GB = 163843MB

170GB = 174088MB

180GB = 184324MB

190GB = 194561MB

This exact partitioning result, shown in the Administrative Tools-Disk Management interface, and Windows Explorer, is an integer, and 10G is either 10.00gb,20g or 20.00gb,40g or 40.00GB.