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flash Disk sizes

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I just noticed that 1GB flash-disk when I open it in properties and see the full size it shows the total space is 983MB :whistling:
How come????
Its a new flash-disk.........Also i tried with the 256mb flash disk, it give me something arnd 220 or something like tht ????
What is the reason I am not getting the exact size as it is written on its box ???? :blink:
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Neil Jones

Neil Jones

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Same reason that hard drives report that they only hold 74.5Gb when the label on the disk says 80Gb. Rounded down.
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Yep. it's all to do with arithmetic and how companies work out the the capacity of a drive. To them, there are 1000 kilobytes in a megabyte. But to be spot on accurate there are actually 1024 kilobytes in a megabyte. Windows uses the accurate figure, hence the difference.
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    motto - Just get-er-done

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You might also look at the flash drive and notice that it has files and folders on it to tell windows what it is. These will take up a small amout of space that the manufacturer just rounds off.

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here are some numbers(boring stuff).

marketing numbers do not equal what PC use.

let's say marketing says 1kb, that means 1000 bytes.
computers consider 1kb = 1024 bytes.
we have a 2.34% difference in the 1kb claims.

let's say marketing says 1mb, that means 1000000 bytes.
computers consider 1mb = 1048576 bytes.
we have a 4.63% difference in the 1mb claims.

let's say marketing says 1gb, that means 1000000000 bytes.
computers consider 1gb = 1073741824 bytes.
we have a 6.86% difference in the 1gdb claims.

so if marketing says 1gb, let's reduce it by 6.86%.
we wind up with 931322575 bytes

therefore your device is ok.

part II - we can use the 931kb number to check the integrity of the product. the consumer must decide. if your 'empty' available space is considerably less(10%?) than 931kb, you may want to return the device.
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