Quote Originally Posted by drozenski View Post
If you want to know the size of old drives that do now have a marking on the that say the size. You will need this formula and some info from the cover.

First get the info from the drive
Heads
Cylinders
Sectors

Then apply these formulas.

Heads x Cylinders x Sectors x 512 = Total drive byte size

Total drive byte size / 1024 = Total drive Kilobyte size

Total drive Kilo byte size / 1024 = Total drive Megabyte size

Total drive Megabyte size / 1024 = Total drive Gigabyte size

That will give you the ( Actual disk size ) If you want to know exactly how big windows will see it. Replace the 1024 with a 1000. As windows uses a base 2 system for size calculations but manufactures use a base 10.



To find the full GB size of a drive the forumla would look like this.

Heads x Cylinders x Sectors x 512 = ((( Total drive byte size / 1024 ) / 1024 ) / 1024 ) = GB Size
thanks for the information.

will apply it soon.