what is process image is

8) When the system function sleep(1) is called the UNIX man (help) page says that sleep(1) would sleep for at least a second and not one second exactly. Why is this? 9) When the short-term scheduler is running in what mode is the operating system executing? 10) Name one table an operating system must maintain. 11) Name two elements found in the process control block. 12) Two types of receives and sends are blocking and non-blocking, what type of receive and send must be used to enforce tight synchronization (i.e., a rendezvous)? 13) Compare and contrast a binary with a counting semaphore. 14) What is the race condition and why are errors caused by this so difficult to fix? 15) Compare and contrast a Process Control Block with a Thread Control Block. 16) What is the definition of atomic operation? Give an example of an atomic operation