new hard drive

  tammy11 22:29 18 Nov 2003

i have just installed a new 120gig hd,but i only have 111gig available to use,is this right?.seems a lot of space to lose when there is nothing on the drive.any sugestions please.

  Cretin07 22:30 18 Nov 2003

hm.. is this ntfs? usually converting to ntfs uses quite alot of space. wellfor me anyway. but not that much, say about 5 gig.

  DieSse 22:34 18 Nov 2003

Yes, you're OK. It's all in two different ways to describe the size.

The "computer" way, where 1Kb = 1024 bytes, OR

The ISO way where 1Kb = 1000 bytes.

Whichever way it's described, you get

120,000,000,000 bytes (approx).

  Cretin07 22:38 18 Nov 2003

1024 megabytes is 1 gig. and that times 120 is about 121 or something. doesnt make sense somehow, but i think your right in a way. I'm puzzled tbh.

  DieSse 22:45 18 Nov 2003

No, 1024Mb is NOT 1Gb.

1024bytes is 1Kb.

So the sum is 111Gb = 1024x1024x1024x111 = nearly 120,000,000,000bytes

Which when expressed with ISO terminology is 120Gb.

  Cretin07 22:47 18 Nov 2003

i said 1024 MEGABYTES and it IS 1 GIGABYTE. I am certain.

  Cretin07 22:48 18 Nov 2003

look 8 bits is a byte. 1024bytes is a kilobyte. 1024 kilobytes is a megabyte and 1024 megabytes is a gigabyte. and 6 gig is a tb but not needed to know.

  keith-236785 22:48 18 Nov 2003

if you have formatted the drive then i would say it is correct.

my 80 gig H/D is only actually 74.3 gig after being partitioned into three and formatted.

i have lost 5.7 gig on 80, so

rough maths, 5.7 * 1.5 (cos your drive is 1½ times the size of mine)= 8.55 gig lost so

120 - 8.55 = 111.45 gig which is about what you have.

hope this helps

  Quiller. 23:03 18 Nov 2003

Yes you are about right.

My 40 gig comes out at 37.5. Loosing 2.5 gig.

My 80 gig comes out at 75.0. loosing 5.0 gig.

  DieSse 23:16 18 Nov 2003

You do not lose anything of any significance by formatting - it's all in the numbering system.

Cretin07 - yes - my apologies, 1024Mb is 1Gb.

But to find the total number of bytes in 111Gb ("computer" numbering system) You still need to do the sum I gave

111x1024x1024x1024 = 120,000,000,000 bytes (approx) = 120Gb (ISO numbering system)

It all originally stems from binary numbers.

This thread is now locked and can not be replied to.

Elsewhere on IDG sites

iMac Pro review

Illustrator Charles Williams on how to create magazines and book covers

iMac Pro review

Les meilleures prises CPL (2018)