Linked by Jordan Spencer Cunningham on Tue 22nd Sep 2009 16:50 UTC
Apple We all have our most favored machines of yesteryear; in this I assume that most people are like me, anyway. Breaking away from the mundane every-day news of boring (I jest) new technologies such as touchscreens the size of a wall and upcoming operating systems that support graphics cards with 1.5 GB of vRAM, take a walk down memory lane-- or "Neurological Alley" as I like to call it-- and take a look inside, outside, and in all of the nooks and crannies in between the circuits of the Macintosh Plus and its accompanying System 6, fresh from the splendor of 1986.
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RE[2]: Copland Opensource
by kyrc on Wed 23rd Sep 2009 12:12 UTC in reply to "RE: Copland Opensource"
kyrc
Member since:
2008-11-30

MacOS 6 doesn't have pre-emptive multitasking. Perhaps a solution would be MacOS 6 virtual machines with each app having its instance of MacOS.

Reply Parent Score: 1

RE[3]: Copland Opensource
by JLF65 on Wed 23rd Sep 2009 18:45 in reply to "RE[2]: Copland Opensource"
JLF65 Member since:
2005-07-06

MacOS 6 doesn't have pre-emptive multitasking. Perhaps a solution would be MacOS 6 virtual machines with each app having its instance of MacOS.


No MacOS until OSX had preemptive multitasking. The switch from cooperative to preemptive multitasking was one of the major features of 10.0.

The major feature change from System 6 to System 7 was getting rid of the switcher. System 7 was Mac's first real desktop OS, allowing easy use of more than one program at a time.

Reply Parent Score: 2

MacMach
by samkass on Fri 25th Sep 2009 18:48 in reply to "RE[2]: Copland Opensource"
samkass Member since:
2006-12-17

There was an experiment at Carnegie Mellon in the early 90's to put classic MacOS on top of the Mach microkernel. I ran it on my Mac ][ci in my dorm room and it worked pretty well. Not all software ran successfully, but when it did you could see it with a "ps aux" and telnet into our out of the box. Traditional Mac apps ran cooperatively multitasked in their little box, but BSD apps ran on the protected, pre-emptive kernel.

http://www.cs.cmu.edu/afs/cs.cmu.edu/project/mach/public/FAQ/obsole...

Reply Parent Score: 1