external hard disk

  amoeba 15:13 06 Dec 06
Locked

hello!

my brother bought an 80Gb 2.5" external hard disk
for my pc.
I transferred 74.Gb and have 37.9 Mb left. But
next to total size it says 74.5Gb. Where has the
rest of the 5.5Gb gone??? Can someone explain?

Thank you!!

  Monument 15:28 06 Dec 06

It is because manufacturers use 1000 bytes for a KB when in fact it is 1024 bytes.

So your 80GB was never 80GB

80,000,000,000,000 /1024 /1024/ 1024 = 74.5 ish

  amoeba 15:44 06 Dec 06

thank you for your explanation.

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