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You are here: MacNN Forums > Enthusiast Zone > Classic Macs and Mac OS > What Is The Difference Between a Standard and Extended Disk

What Is The Difference Between a Standard and Extended Disk
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Junior Member
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Sep 1, 2001, 02:50 AM
 
What Is The Difference Between a Standard and Extended Disk? Thanx 4 reading this.
     
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Sep 1, 2001, 03:29 AM
 
By standard and extended, I think (hope) you mean HFS and HFS+.

HFS is a 16-bit file system (correct me if I'm wrong) and can only have so many files per volume, and as drive size increases, so does the minimum allocation unit. This started to become a problem about the time that hard drives reached 1 GB. A 1 GB partition, using HFS standard, would have a minimum filesize of 16KB. That doesn't seem like much, but if a document only has 400 bytes of actual data, and you've got a lot of those documents (such as prefs files) then the wasted space adds up.

HFS+ is the solution to HFS. It's a 32-bit file system with a very high limit on files per volume (of like 6 trillion files, although it is still a limit). The real advantage of HFS+ is that it uses smaller allocation blocks, so that same 400K file would only take up 4KB as a pose to 16. There's still wasted space on tiny files, but a lot less. Other advantages of HFS+ are larger maximum file sizes, bigger partitions, and less fragmenting. The only disadvantage of HFS+ is that it won't boot or even work on 68K machines.

Hope this helps.
     
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Join Date: Aug 2000
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Sep 1, 2001, 10:04 AM
 
kinda reminds me of this little funny I saw a while back...........

"Windows 98 and ME: 32 bit extensions and a graphical shell for a 16 bit patch to an 8 bit operating system originally coded for a 4 bit microprocessor, written by a 2 bit software company that can't stand 1 bit of competition...

HEHEHEHEHE.... ROTFLMAO

BTW, the above post is essentially correct, at least in laymans terms anyway !
You can have me mac when u pry me cold, dead fingas off da mothabowd :eek:
     
   
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