Mac Forums - View Single Post - differences between classic and full os 9 install?

Avalon · Avalon #2 (**permalink**)

10-28-2005, 05:05 PM

A natively installed OS9 uses, like a real OS, direct hardware resources, with it's own driver and all.
Running OS9 in the Classic environment is similar to VirtualPC. OS9 "acts" like if it was natively installed, but hardware accesses is emulated by the Classic environment.
So what comes as Classic with every new Mac mainly is a full OS 9, but without all the necessary hardware driver, as they are not needed, and for newer hardware the driver simply aren't available.

Even if you have a full retail OS9, it can't boot on any newer Mac.

Avalon #2 (permalink)
Member Since: Jun 25, 2004 Location: Luxemburg, Europe Posts: 1,779 Mac Specs: PowerMac G5 Dual 2GHz (June 2004), 2.5GB, Airport, black 5G iPod 30GB, white MacBook 2.0 2GB	10-28-2005, 05:05 PM A natively installed OS9 uses, like a real OS, direct hardware resources, with it's own driver and all. Running OS9 in the Classic environment is similar to VirtualPC. OS9 "acts" like if it was natively installed, but hardware accesses is emulated by the Classic environment. So what comes as Classic with every new Mac mainly is a full OS 9, but without all the necessary hardware driver, as they are not needed, and for newer hardware the driver simply aren't available. Even if you have a full retail OS9, it can't boot on any newer Mac.
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