kernel thread

We have taken the execution aspect of a process and separated it out into threads
◆ To make concurrency cheaperz
As such, the OS now manages threads and processes
◆ All thread operations are implemented in the kernel
◆ The OS schedules all of the threads in the system
OS-managed threads are called kernel-level threadsor lightweight processes
◆ NT: threads
◆ Solaris: lightweight processes (LWP