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Past Announcements for Spring 2025

• (05/05) Course Evaluation If you have not completed it, please do it before May 8. It is available through canvas (left pane, option at the bottom between Files and Panopto Video).
• (5/5) Reminder Tue and Wed Tomorrow's Tuesday is an NJIT Thursday (missing Wellness Day). There is a class (last one), and Office hours will be held. The day after tomorrow, a Wednesday is an NJIT Friday (missing Good Friday). There are Office hours that will be held.
• (5/2) Typo Subject 13 Slide 6 bottom with red ink say "AFS: uses 12 hour tokens". Currently, at NJIT the duration of an AFS token is 10 hours.
• (05/02) SA9 and SA10 done; SA11 and SA12/13 pending SA9 and SA10 have been made available; note that the availability is shorter than two weeks. SA11 and SA12/13 are still available.
• (05/02) (04/29) (04/25) Course Evaluation If you have not completed it, please do it before May 6/7. It is available through canvas (left pane, option at the bottom between Files and Panopto Video).
• (04/28) Subject 11 typo Slide 53: "(binary semaphore)" next to the red-typed "lock" should be removed. Thus the sentence should read "a lock for mutual exclusion, and"
• (04/24) Seating arrangements for Ex3 In canvas/Announcements plus section C of the course web-page.
• (04/25)(04/24) HW3 and SA8 graded They are available for two weeks. Note that beyond today, as SA would become available to May 8 thus for a period less than two weeks. The sol key for HW3 is available both in Canvas Announcements and the CWP in addition to its availability in Canvas quizzes..
• (04/25)(04/24) HW3 and SA8 graded They are available for two weeks. Note that beyond today, as SA would become available to May 8 thus for a period less than two weeks. The sol key for HW3 is available both in Canvas Announcements and the CWP in addition to its availability in Canvas quizzes..
• (04/24) Typo found SA8 It is inconsequential but embarassing and amusing. There is a "acoomodate" for "accommodate". I am trying to figure out what happened with the keyboard at the time of that writing.
• (04/24) Seating arrangements for Ex3 In canvas/Announcements plus section C of the course web-page.
• (04/22) Reminder re HW3, SA 8 Due this coming Thu before 12pm (canvas for noon time).
• (04/16) Subject 10 typos Slide 29: "c bit", "f bit" should have been "d bit" and "g bit". The c, f, d, g refer to the positional labels of the first line of the slide. This can be ignored. The relevant material will be skipped, so no hard done with the confusion introduced by the typo. Moreover the "g+w" and "u-s" following the two "or" should have been "chmod g+s filename" and "chmod g-s filename" respectively. Slide 51: "inode represent" should have been "inode represents" with a comma prior to "its". Slide 69, last line contains a "directoy".
• (04/17) Friday 4/18 is Good Friday The University is closed: no office hours.
• (04/09),(04/01) Subject 8 typos Slide 15. It says "Cost of this slide: 1 instruction stalled, plus 3*80ns + 20ms". It could have said "Fetch stage: fetch stage executed plus 2*80ns, one execute stage stalled, plus 1*80ns, plus 20ms (pager)". So the "1 instruction stalled" is because the execute stage was stalled. Slide 46. In the inverted page table entry a period between M (modified bit) and Ctrl (control bit) should have been a comma (,) instead.
• (04/03@12:43)(04/02) Exam 2 grading Grades in canvas would become available after noon time tomorrow Thursday. Before then at least two Canvas announcements would be posted: (a) exam statistics, and (b) midterm class performance that will be based on the grades of the first two homeworks and the first two exams but not on attendance or self-assessments. The exam paper will be returned in the classroom around 09:45 this coming Tuesday. A solution key would then become available through canvas Announcements as well. Grades for Exam 2 should be visible in canvas under "Exam 2 grade through".
• (03/27) HW2 graded, SA5 and SA6 also graded The solution key for HW2 both in Canvas Announcements and in section C of the course web-page.
• (03/21) Subject 7 typos Slide 12: "For 32-bit ... it is no more than 32 bit" and Slide 12: "For 64-bit ... it is no more than 64 bit". Both "it" refer to a page number. There is a revised version available in Section C that incorporates this change. I revised Subject 7 not because of this but because the "Subject 7" was not appearing for some PPTX reason on the cover page!
• (03/20) SA-04 graded; reminders re SA-05, Sa-06, HW2 More in Canvas/Announcements. Note that SA-05, SA-06 and HW2 cease to be available in Canvas next week (noon Mar 27).
• (03/18) Exam 2 on Tue 1st April at 8:30am and grade reporting through canvas A paper exam worth 250pt to be completed within 60 minutes. Note that Thu 3 April is a Wellness Day for NJIT and there is no class thus the paper exams will be returned on Tue 8 April. What will be covered in Exam 2: Subjects 3, 4, 5, and 6. A quiz in canvas named "Exam 2 grade through this template quiz" has been published (Mar 18) and would become available starting April 1 UNTIL April 3, 12PM (canvas definition of noon time). If you submit this quiz and write YES as the answer to its only question, I would be able to assign to it a grade which would be your Exam 2 grade. This way you will learn your Exam 2 grade prior to the Apr 7 withdrawal deadline and prior to me handing out the paper exams on Apr 8. If you do not submit, you will wait to April 8 to pick up your paper exam.
• (03/12) Typos Subject 6 Page 16, "(ready queue of 0)" should read "(ready queue of 2)" since 10 mod 4 is equal to 2. Also, on page 12, under load balancing there is a "B,D". This is a typo: correct it into "B,C". This is because "A,D" are already assigned to processor 0, and thus "B,C" assigned to processor 1 generate a load-balanced system.
• (03/12) Typos Subject 6 Page 16, "(ready queue of 0)" should read "(ready queue of 2)" since 10 mod 4 is equal to 2. Also, on page 12, under load balancing there is a "B,D". This is a typo: correct it into "B,C". This is because "A,D" are already assigned to processor 0, and thus "B,C" assigned to processor 1 generate a load-balanced system.
• (03/10) Exam 2 preparatory Tomorrow March 11 we are at 2 Tuesdays or two-class weeks (discounting Spring Break week and Spring Break Tuesday) before Exam 2 SCHEDULED for Tue 1st April. Note that Thu 3 April is a Wellness Day for NJIT and there is no class. What will be covered in Exam 2: Subjects 3, 4, 5, and 6. Self-Assessment 3, 4, 5, and 6 help preparing for Exam 2, and so does HW2.
• (03/10) Reminder this week: SA 3 SA 3 will cease to be available on Mar 13 (and canvas 12pm is noon time).
• (03/10) Reminder for SA 4 SA 4 closes i.e. will cease to be available on Mar 20 which is during Spring Break. My suggestion is to deal with it by the end of this week before you hit Spring Break mode.
• (03/10) Reminder for HW2, SA5 and SA6 HW2 and SA5 will case to be available on Mar 27. Likewise for SA6. Note that HW2 contains material from Subjects 3, 4 and 5 so it is imperative that you complete the study of Subjects 3 and 4 and their self assessments this week, and may be leave Subjects 5 and 6 between Tuesday and Thursday, Spring-Break and the week after. Subject 5 coverage will be completed on Tue 3/11 and Subject 6 on Thu 3/13, hopefully.
• (02/28) Exam 1 grading info The exam has been graded. It will be returned at 9:45 in the classroom; Tue non-attendees can pick it up on Thu from the classroom at 9:50 or during office hours thereafter. Statistics are available in Canvas Announcements and Section C of the CWP. A solution key would become available through Canvas Announcements starting 5pm on this coming Tue. Afterwards it will also be posted in Section C of the CWP.
• (02/28) HW2, SA3 and SA4 SA3 has been active and SA4 will be active starting on Tue. HW2 will also become available on Tue (3/4) one week earlier than anticipated in the syllabus. HW2 draws primarily from Subjects 3 and 4 with the last two problems from Subject 5. Most of the material will be covered next week, and a bit the week after. Thus before the Spring break we will have covered in class Subject 3-5 and possibly Subject 6.
• (02/28) SA5 and SA6 SA5 will be active on Tue (3/4). Coverage of Subject 5 will start on Thursday though. Both Subject 5 and 6 will be completed by the Spring break. Exam 2 will cover Subjects 3,4,5, and 6.
• (02/22) Seating arrangements Ex1, Ex1 revised Revised seating arrangements both in Section C of the course web-page and Canvas Announcements (new message).
• (02/22) Exam 1 this coming Thu As mentioned in class it covers Subjects 0,1, and 2, and by extensions SA00, SA01, SA02, and HW1. Closed everything, see e.g. Doc1 or Syllabus.
• (02/20) Solution key for HW1 and SA02 The Homework has been graded. So have SA01 and SA02. All are available in Canvas starting 1pm today for 2 weeks. In addition a solution key for HW1 has been posted in Canvas Announcements plus Section C of the course web-page. Moreover, a solution key for SA02 has been posted in Canvas Announcements: this was done to clarify further issues with the last question(s).
• (02/20) SA-03 typo Question 1.7 lists an USER-IR. It is a typo it should have read USER-ID. Consider it a USER-ID when answering 1.7. For question 2 utilize the following case sensitive words or phrases: the four words are PID, context, process, thread and the phrase is context switch. Not all of them need to be used and they can be reused.
• (02/20) Section C: Link error to Subject 3 fixed Header says it all.
• (02/07) SA1 minor typo In 6(b) there is a "Express is a percent". It should read "Express it as a percent". That is do not write for example 20 or 0.2 but instead 28%. See also the comment in parentheses.
• (02/06) SA0 (aka SA-00) graded SA0 has been made available for a two week period. Take screenshots and digitally archive it as needed. The answers and your answers should be viewable.
• (02/05) Thu 6 Feb class in ZOOM Tomorrow (Thu 6 Feb) the class will be in ZOOM. NJIT has declared a snow emergency. Zoom meeting details have been emailed to you through Canvas and also Webmail (meeting link, meeting ID, meeting password). A CANVAS Announcement has also been posted and contains the same information as well. See you on Zoom tomorrow.
• (01/30) Active Assignments in Canvas SA 0 (closes 2/6), SA 1 (closes 2/20), and HW1 (closes 2/20).
• (01/07) Course Web-page and Canvas (LMS) The course web-page (CWP) duplicates some areas of canvas that are behind 2FA authentication. This is done for easiness and replication purposes. Section C authentication credentials are on page 5 of Document 1 (canvas) and Document 1 is attached to message 1 in Canvas Announcements. Canvas will be released Jan 14. The syllabus is available through section B.
• (01/06) Syllabus in Section B The syllabus has been made available in Section B.
• (12/23) Fall 2024 semester course is over The CS332-103 (Fall 2024) semester course is over. Canvas material would become inaccessible by the end of this semester (usually just before the start of the Winter term). This page has been retired. Use the Previous offerings link to access parts of it. Information on this page will reflect the Spring 2025 or later offering of this course.
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