5 Oct
2007
5 Oct
'07
6:43 a.m.
On 05/10/2007, Doc Shipley <doc at mdrconsult.com> wrote:
Cameron Kaiser wrote:
You misunderstand, badly. You are confusing the older OS with the VM
environment in which is runs.
"Classic", to be precise and accurate, means the support for running
MacOS 9 in a VM under OS X. Classic is the *compatibility environment*
for MacOS 9, it is not MacOS 9. MacOS 9 remains itself; it's the OS,
"Classic" is the subsystem it runs in. You launch MacOS 9 inside
Classic.
Leapard - OS X 10.5 - lacks that subsystem. It cannot launch MacOS 9
in a VM, and thus it cannot run MacOS 9 apps at all in any way. OS X
10.5 is the first version that is not in any way backwardly software
compatible with previous MacOS versions.
In this way, 10.5 brings fast G4s and G5 PowerPC machines to parity
with x86-based "Macintels". Now, neither can run "classic MacOS"
code.
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This is semi-OT, but if you use an OS X capable
Power Mac to run legacy Mac
software, 10.5 apparently no longer supports Classic even on PowerPC machines.
http://www.lowendmac.com/mail/mb07/0716.html#2
This is a shame, since a lot of early Mac software will surprisingly still
run on my G5 running Tiger. In fact, I use an old System 6-era version of
Caere OmniPage for simple OCR tasks since it's so unbelievably fast by
comparison.
"Doesn't support" as in "will not run the Classic
environment", or
"does not ship with Classic"?
Tiger (v10.4) did not ship with Classic either.