1. How does a multicore computer with shared memory differ from a distributed or a clustered system with respect to the OS? Make specific reference to the OS kernel.

b. Briefly explain the difference between processes and threads.

c. Threads on a single core system are often handled in user mode. Explain why this is not acceptable on a multicore computer.

d. Explain at least 2 ways that the OS can handle threads on a multicore computer.