CS 470 - Operating Systems

MWF 10, KC-267

Announcements

These are announcements made in class or via email currently in effect for this course.

Wednesday, March 29, Re: Case study schedule
Here's the schedule for the end of term after Exam 2 (4/10).

• 4/12 - TBA
• 4/14 - Easter break

• 4/17 - Easter break
• 4/19 - No class to let seniors prepare for project presentations on 4/20
• 4/21 - DOS/Win 3.1, OS/2

• 4/24 - Windows CE, Palm OS
• 4/26 - CP/M, RTEMS
• 4/28 - Multics, Mac OS X

• 5/1 - Mosix, course wrapup

Monday, February 6, Re: Homework 3 due date
This is confirmation of the announcement in class that the due date for Homework 3 has been extended to the beginning of class on Friday, February 10. Since that is the day of the Exam 1 Review and we will be going over the problems, solutions must be submitted at the beginning of class and no late submissions will be accepted.

Links

• Catalog of Operating Systems

Handouts

This is a list of documents and assignments created for this class in reverse chronological order. Most are available only on the Web. Some were also handed out in class. A few are hard copies only.

• Friday, April 28
  • Final Exam Review Sheet (HTML) (PDF)
• Wednesday, April 5
  • Exam 2 Review Sheet (HTML) (PDF)
• Wednesday, March 29
  • Homework 8 (25 points):
    • Problem 12.1 on page 489.
    • Problem 12.2 on page 489-490.
    • Problem 13.3 on page 526.
    • Explain the difference between protection and security in an operating system. Give an example of a violation of each and give a scheme to prevent each violation. Explain how the schemes prevent the violations.
    • Discuss several weaknesses inherent in password protection schemes. Describe the guidelines that you follow in choosing your passwords. (Be sure not to give your current password!) Discuss whether your guidelines make your passwords more or less secure.
    Due: April 7 (Friday at the beginning of exam review class; NO LATE WORK ACCEPTED)
• Wednesday, March 22
  • Homework 7 (25 points):
    • Problem 10.1 on page 408.
    • Problem 10.4 on page 408.
    • Problem 10.6 on page 408.
    • Problem 11.1 on page 447.
    • Problem 11.6 on page 448.
    Due: March 29
• Monday, March 20
  • Memory Management Project (HTML) (PDF)
• Friday, March 17
  • Schedule, Part 2 (HTML) (PDF)
• Wednesday, March 15
  • Homework 6 (25 points):
    • Problem 9.4 on page 366. Assume the virtual address is in hexadecimal.
    • Problem 9.5 on page 366
    • Problem 9.10 on pages 367--368. (note: f-h is on the second page)
    • Problem 9.14 on page 368
    • Problem 9.15 on page 36
    Due: March 22
• Monday, March 13
  • Case study guidelines (HTML) (PDF)
• Monday, February 27
  • Homework 5 (25 points):
    • Problem 8.3 on page 310
    • Problem 8.5 on page 311
    • Problem 8.9 on page 311
    • Problem 8.10 on page 311
    • Problem 8.12 on page 312
    Due: March 15 (Wednesday after spring break)
• Wednesday, February 15
  • Homework 4 (25 points):
    • Problem 7.1 on page 268
    • Problem 7.5 on page 269
    • Problem 7.6 on page 269
    • Problem 7.8 on page 270
    • Problem 7.11 on page 270
    Due: February 22
• Wednesday, February 8
  • Exam 1 Review Sheet (HTML) (PDF)
• Friday, February 3
  • Code used in lecture. Also available on csserver in directory /home/hwang/cs470/lecture10
    • Semaphore synch producer-consumer example
  • Process Management Project (HTML) (PDF)
• Wednesday, February 1
  • Homework 3 (25 points):
    • Problem 5.7 on page 188
    • Problem 6.1 on page 231
    • Problem 6.11 on page 233 using semaphores -- by "write a program", we mean write the pseudocode for a program in the style of the textbook (also for the monitor problems below)
    • Problem 6.13 on page 233
    • Problem 6.22 on page 234
    Due: February 8
    Due date extended to beginning of class February 10. NO LATE SUBMISSIONS ACCEPTED
• Wednesday, January 25
  • Code used in lecture. Also available on csserver in directory /home/hwang/cs470/lecture06
    • POSIX threads, Win32 threads
  • Shell Project (HTML) (PDF)
  • Homework 2 (25 points):
    • Problem 4.1 on page 146
    • Problem 4.7 on page 147
    • Problem 5.2 on page 186
    • Problem 5.4 on page 187
    • Problem 5.9 on page 188
    Due: February 1
• Monday, January 23
  • Code used in lecture. Also available on csserver in directory /home/hwang/cs470/lecture05
    • Message queue producer-consumer example
• Friday, January 20
  • Code used in lecture. Also available on csserver in directory /home/hwang/cs470/lecture04
    • POSIX process creation, Win32 process creation, Shared memory producer-consumer example
• Wednesday, January 18
  • Homework 1 (25 points):
    • Problem 1.17 on pages 37--38 (note: f--i are on the second page)
    • Problem 2.7 on page 73
    • Problem 3.2 on page 116
    • Problem 3.3 on page 116
    • Problem 3.4 on page 117
    Due: January 25
• Wednesday, January 11
  • Syllabus and Schedule, Part 1 (HTML) (PDF)