Re[2]: [Am-info] O/S 2 support - slightly off topic (my apologies)

[John Poltorak]

On Sat, Mar 16, 2002 at 08:22:06PM -0600, Eric M. Hopper wrote:
> On Sat, 2002-03-16 at 16:09, John Poltorak wrote:
> > > Cooperative vs. preemptive
> > > are CPU scheduling techniques.  Multitasking vs. multithreading are
> > > about sharing memory between tasks, and not CPU scheduling at all.
> > 
> > OS/2 is both multitasking and multithreading, where every task consists of 
> > one or more threads. Those tasks share CPU not memory AFAIAA. The only 
> > time that memory is shared is when it is overcommitted and a task is 
> > swapped out to disk.
> 
> Threads are tasks that share memory.

Threads are not tasks, they are sub-tasks. Each task is identified by a 
process id, and one or more threads execute within that task.

> Tasks (including threads) share
> CPU.
> 
> Have fun (if at all possible),
> -- 
> The best we can hope for concerning the people at large is that they
> be properly armed.  -- Alexander Hamilton
> -- Eric Hopper (hopper@omnifarious.org 
> http://www.omnifarious.org/~hopper) --

-- 
John