1. Homework CSE316 Operating System
Q1 What is the main difficulty that a programmer must overcome in writing an operating
system for a real-time environment? Explain. (5)
Q2 List the design goals of Windows XP. Describe any two in detail. (5)
Q3 Discuss the mechanism for interrupt handling of I/O operations. Be sure to differentiate
between hardware (or firmware) functions and software (OS) functions. (5)
Q4 Difference between process and program with at least two real time examples? List out some
reasons for process termination. Measurements on the CTSS system showed that about half of
all user requests could be classified as file manipulation, program input, and editing. How
would you use this information about expected workload to improve processor utilization at a
reasonable cost without degrading user response? (5)
Q5 What are the main differences between operating systems for mainframe computers and
personal computers? Suppose a short-term scheduling algorithm favors those processes that
have used little processor time in the recent past.
a. Explain why this algorithm favors I/O-bound processes.
b. Explain why this algorithm does not permanently deny processor time to CPU bound
processes. (5)
Q6 During a process switch, the operating system executes instructions that choose the next
process to execute. These instructions are typically at a fixed location in memory. Why? (5)