At 9:07 -0400 6/19/04, chris wrote:
>I've noticed that some iMacs came preinstalled with both OS9 and OS10. On
the surface that seems to be a major advantage in that you can run
applications specific to each OS. Am I correct in thinking that there is an
advantage here? Also - how does that work? Do you boot up in one of the
operating systems before using the OS-Specific applications?

There are two options. 1: Run OS 9 via Classic in OS X, that is the "common" way of doing, and the only way of doing it on any of the recent Macs. This will work for 90% of the OS 9 (or previous) applications. However, there are some things, particularly apps that interface with hardware (like scanner apps), that won't work this way. In those cases, you do #2: Reboot the computer and boot off the OS 9 system folder, giving you a true OS 9 based computer. The problem with this approach is, it simply doesn't work with the most recent Macs. Apple announced a while ago that OS 9 booting would be dropped, and they have done so in the recent lines. I believe it anything introduced since the Flat Panel iMacs were introduced, so none of the Flat Panels, nor the later G4's or any G5's, or the current line of PowerBooks and iBooks... basically, anything that you can buy today, can't book OS 9, except possibly the eMac, as that is essentially unchanged since its original introduction before the OS X Only cutover (although it too may have been changed, I'm not sure).


No, Chris, only machines released in 2003 or later won't boot into OS 9 (and I've heard that that may not be true for the eMac). My 2.5 year old G4 iMac boots up in 9, as does my brother's 17" model that he bought in Dec 2002.
--
Sincerely,
Dennis B. Swaney


"Windows is a command-line OS with a GUI shell while Mac System 10 is ... oh, never mind."

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