OS Exercise 3


 * 1) How does the distinction between kernel mode and user mode function as a rudimentary form of protection (security) system?
 * 2) Explain the purpose of system calls?
 * 3) What is the purpose of system programs?
 * 4) Discuss how an NTFS OS handles data structures and recover from a system crash?
 * 5) Explain the five major activities of an operating system in regard to process management?