Clearing space on my new mac, help would be appreciated

Discussion in 'MacBook Pro' started by rjsbass, Nov 20, 2006.

  1. rjsbass macrumors member

    Joined:
    Nov 20, 2006
    #1
    Hey guys after reinstalling mac os, there is only 60gb left on my 80 gb hard drive. i unchecked printer drivers and the fonts and languages and mac os still takes up 20gb? help please
     
  2. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

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    Jan 20, 2005
    #2
    Things like GarageBand loops and iDVD themes take up several GB of space. If you're not planning on using those apps, you might think about getting rid of that stuff.
     
  3. Eraserhead macrumors G4

    Eraserhead

    Joined:
    Nov 3, 2005
    Location:
    UK
    #3
    An 80GB hard drive, due to number conversion issues, is actually 74.5GB to start with, so that accounts for about 6GB.
     
  4. Passante macrumors 6502a

    Passante

    Joined:
    Apr 16, 2004
    Location:
    on the sofa
    #4
    Getting rid of Garageband and the associated files will get you back close to a gig.
     
  5. rjsbass thread starter macrumors member

    Joined:
    Nov 20, 2006
    #5
    well i may need garage band, and it may be fun to play around with. what conversions make it 74gb instead of 80gb?
     
  6. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

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    Jan 20, 2005
    #6
    Gigabytes are units using base 10...a GB is 1,000,000,000 bytes. This is how hard drive capacities are listed.

    But computers think in binary units, where they consider a GB to be 1,073,741,824 bytes (1024 MB). But the computers are using incorrect terminology when reporting this info to users. What a computer calls a GB is actually a GiB (gibibyte).

    The end result is that when you're talking about capacities in the GB range, your computer reports your drive as being only 93% of the size it actually is. But because everything else on the computer is also reported "incorrectly" by the computer, it is this "smaller" capacity that is relevant.
     
  7. Grakkle macrumors 6502a

    Grakkle

    Joined:
    Oct 6, 2006
    Location:
    Earth
    #7
    Relax, unless you have an enormous audio library or do a lot of video editing it's highly unlikely you'll ever fill those 60 free gigs.;)
     
  8. rjsbass thread starter macrumors member

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    Nov 20, 2006
    #8
    are companies false advertising? or are all capacities of programs relative to this conversion?
     
  9. tilman macrumors regular

    Joined:
    Feb 28, 2006
    #9
    Think of it as paperwork. You can't just use every byte on your hard disk to store your data. You need to dedicate some of those bytes to keep track of things. The bytes on the disk get grouped into blocks, typically 4,096 bytes in size. That's 20 millions block for an 80 GB disk. You need to reserve some space to keep track of these blocks, like which ones are in use, and which ones are available.

    Tilman
     
  10. tilman macrumors regular

    Joined:
    Feb 28, 2006
    #10
    Tech specs for disk drives and computers usually have a little footnote when specifying storage space. Here is an example from the iMac tech specs on the Apple web site:

    160GB Serial ATA(2); 7200 rpm
    ...
    (2) 1GB = 1 billion bytes; actual formatted capacity less.

    Tilman
     
  11. WildCowboy Administrator/Editor

    WildCowboy

    Staff Member

    Joined:
    Jan 20, 2005
    #11
    Well yes...your OS is engaging in false advertising by using the incorrect GB term. But it's the standard in the industry...all OS's that I know of do this. And trying to differentiate between GB and GiB for the general public would be horrible disaster. The vast majority of people never notice that what their computer is reporting as a GB is actually a GiB. And frankly, most of them couldn't care less, so I guess maybe ignorance really is bliss for most people.
     
  12. rjsbass thread starter macrumors member

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    Nov 20, 2006
  13. SeVeN macrumors 6502a

    Joined:
    Aug 8, 2006
    Location:
    San Jose
    #13
    the other day i transfered all the Apps and other stuff that i dont use to my 30GB iPod. if you have an iPod.....
     

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