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I am sorry I am asking this old beaten up question and this question is not code related. I understand why 500GB advertised hard disk in actuality is only 465 GB because of the 1024 bit system. For a moment lets not take into account partitions, ghost / hidden files etc.

The question I have is why don't hard drive markers make a bigger hard disk and then sell it as 500GB

for Example: a 538GB really will be 538 * 0.93 = 500.34 GB and then they can say we are giving you 500GB hard drive.

I have googled this topic, read many opinions but no one ever seems to explain why can't hard drive makers themselves make a bigger disk and then sell it as advertised instead of playing this 1024 bit game with consumers?

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closed as primarily opinion-based by Ƭᴇcʜιᴇ007, Mokubai, James, Xavierjazz, Dennis Nov 24 '13 at 21:42

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.If this question can be reworded to fit the rules in the help center, please edit the question.

We can't really say "why" anyone does anything, so I'm voting to close this as Primarily Opinion Based. Also, this isn't a discussion forum, so if you have an actual problem perhaps edit your question to be about it instead. – Ƭᴇcʜιᴇ007 Nov 24 '13 at 21:13
I am sorry but do let me know where can I ask such a question? I posted it on stackoverflow and everyone there told me that it belongs in superuser. That's why I asked it here. – Sam B Nov 24 '13 at 21:14
Why? Simple: money. It is cheaper to make a drive with five billion bits than one with 5,368,709,120,000 bits. They are technically not lying when they say “500GB”, so of course they will use a definition that benefits themselves because it sounds bigger. – Synetech Nov 24 '13 at 21:19
1 GB is a billion bytes, just as 1 km is a thousand meters and 1 MW is a million Watts. Windows is using GB where it should be using GiB (2^40 bytes). Many other operating systems report hard drive sizes correctly. – Dennis Nov 24 '13 at 21:41

The answer is simple: Marketing

More space means higher manufacturing cost. Why someone would pay extra money to sell you a disk with actual 500GB space if you still will buy it with 465 gigs?

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