[4D(Fordy(Ford) Ollie]

Sorry for th title, wasn't quite sure how to word it.


But basically where does all the space go that you can never see??

ie. My Seagate HD Barracuda 1TB showed up as 931.2GB right from the start, before partitioning or anything - wheres the other nearly 100GB?!

Thanks, don't really need it, just a bit confused..

[cheesepuff]

when adverting HDD space, they describe it as 1000MB =1GB, but in reality its 1024MB=1GB. the fact that they told you how they measure it mean that is not technically false advertisement, so they can get away with it. its a loop hope to make the product sound better than it really is.

[4D(Fordy(Ford) Ollie]

So surely 1TB should show up as 1000GB

Not the 931GB I get..

EDIT:

Nope sorry bad maths..

if those GB are made of 1000MB rather than 1024.. then thatll affect it too..

That's right I guess?

[YRTNEG]

1GB = 1000000000 bytes
not 1240000000

[YRTNEG]

and enjoy ur HDD why u can, u get Segegate cos the cheap, the dont have a long lifespan,

[4D(Fordy(Ford) Ollie]

well it wouldn't be 124 and however many 0's you put anyway..

Cuz technically it's like 1024 x 1024 x 1024 x 1024 .. whioch is more complicated because of the 24 multiplication..

Either way it hardly matters.

And Seagate is not the cheapest by a long shot.

[serverguy]

Just to clear this one up....

The way a hard drive manufacturer works it out:

1000 Bytes = 1 Kilobyte
1000 Kilobytes = 1 Megabyte
1000 Megabytes = 1Gigabyte
1000 Gigabytes = 1 Terabyte

So if they put 1000000MB on a hard drive, they consider that to be 1TB
Or 1000000000000 Bytes = 1 Terabyte

However, you computer comes along and measures it from how many bits are actually there:

• 1 Megabyte = 1048576 Bytes

• 1048576 Bytes * 1024 = 1073741824 Bytes (which is also 1 Gigabyte)

• 1073741824 * 1024 = an astromically huge number that comes out at about 1099511627776

• So.... 1099511627776 Bytes = 1 Terabyte

So, as far as the computer is concerned, the 1000000000000 Bytes it has available that the manufacturer provides are short of 1 Terabyte by:

1099511627776 - 1000000000000 = 99511627776 Bytes

99511627776 Bytes = 92.67743 Gigabytes

1000 Gigabytes - 92.67743 = 907.32257 Gigabytes


So actually your manufacturer is giving you slightly more than 1000 Megabytes in a Gigabyte if you have 931 GB free. Or my sums maybe slightly inaccurate, I was dealing with a fairly huge number of bytes

Maths lesson over....

[4D(Fordy(Ford) Ollie]

Yeah cheers.

Bit annoying they can't just give you a "real" TeraByte.. I'd like to be able to comfortably say I have a TB..

But then I have 1 x TB and 2 x 250GB.. so I guess I do lol.

[Bubba]

There's two bits in a byte, ryte?

[serverguy]

Nope, 8 bits in a byte.