Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcnc!ecsgate!ecsvax!dlugose
From: dlugose@uncecs.edu (Dan Dlugose)
Newsgroups: comp.sys.mac.system
Subject: Re: What is the difference between the MAC 512, 512K, 512KE ??
Message-ID: <1990Oct15.151956.5062@uncecs.edu>
Date: 15 Oct 90 15:19:56 GMT
References: <11017@hacgate.UUCP> <1990Oct8.035009.23730@usenet.ins.cwru.edu>
Distribution: usa
Organization: UNC Educational Computing Service
Lines: 23

In article <1990Oct8.035009.23730@usenet.ins.cwru.edu> drz@po.cwru.edu (David R. Zinkin) writes:
>The Mac 512 has the original 64K Mac ROM set found in the Macintosh 128.  
>It supports only 400k floppy drives and the original Macintosh File System 
>(flat-file, no folders).  It's also called the Mac 512K or the Mac 512K 
>unenhanced.

    This is not the whole truth about Mac 512's (or 128's).  They can
be made to support HFS and 800K drives without a ROM upgrade.  Apple
came out with HD20 disks before 128K ROMs, so they released a file
called Hard Disk 20 to put in your System Folder.  If it's there, the 
128 or 512 unenhanced will support an external 800K drive and HFS disks.
I'm sure hundreds or thousands of people wasted money on upgrades
when all they wanted was an 800K floppy or a Hard Disk 20.

   I can email copies of this file.

Dan Dlugose
UNC Educational Computing Service
-- 
Dan Dlugose
Internet: dlugose@uncecs.edu
UNC Educational Computing Service
Box 12035, Research Triangle Park, NC 27709-2035