|
|
|
|
|
|
|
|
|
|
|
|
|
|
ä |
All
thread management is
|
|
|
done
by kernel
|
|
|
ä |
No
thread library but an
|
|
|
API
to the kernel thread
|
|
|
facility
|
|
|
ä |
Kernel
maintains context
|
|
|
information
for the process
|
|
|
and
the threads
|
|
|
ä |
Switching
between threads
|
|
|
requires
the kernel
|
|
|
ä |
Scheduling
on a thread
|
|
|
basis
|
|
|
ä |
Ex:
Windows NT and OS/2
|
|
|