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Classic environment query

beachycove

Well-known member
Does Classic under OSX benefit (indirectly) from the Unix foundation it runs on: Is it, in other words, in any sense multithreaded, or does it run in a single unix "thread," is there protected memory, and does it have any advantge viz. preemptive multi-tasking etc.? Or is Classic simply what MacOS always was, effectively self-contained within some wider unix process?

System 7 under A/UX was single-threaded, did not offer protected memory, and offered only the standard, limited MacOS multitasking capability of plain-Jane System 7, so is MacOS9 running under OSX effectively the same?

 

ealex79

Well-known member
It just virtualized like an OS in Parallels or VMWare. So... the whole Mac OS Classic incl. it's applications run as one UNIX process if I am right. :-x

 

MacMan

Well-known member
I wish they had Classic Support for Leopard PPC users and BootCamp for the Intel beasts.
It is a pity but modern Apple wouldn't entertain that. They have already

:(
 
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