Computer Organization & Systems

Spring 2022

Important course announcements will be posted below and announced in class. You are responsible for all material that appears here and should check this page for updates frequently.

Announcements

Scroll to see more announcements. Updates will also be posted on the discussion forum.

  • Midterm Grades Released Mon May 16 by Nick Midterm exam scores have been released via Gradescope, an online course grading website. You can find more information about the exam solutions, statistics, how to see your score, and information about regrade requests, on the midterm grading page here. Awesome job on the exam!

  • assign5 Released! Thurs May 12 by Nick Assignment 5 has been posted in the assignments dropdown. It is meant to reinforce the topics of assembly translation, reverse engineering, and trust and privacy. The backstory: you have been hired as a security expert for Stanford Bank (a fictional on-campus bank). They need you to investigate reports of infiltration and security issues and replicate the issues so that they can fix them. There are three parts to this assignment, and each one will have you investigate supposed vulnerabilities and assess the risks the bank faces. These problems are like C/assembly "puzzles" to solve, and we hope you enjoy solving them and exploring this material as much as we enjoyed creating them! The assignment is due Friday 5/20 at 11:59PM PT. You can find more details on the assignment page. We strongly recommend getting started early on this assignment! We'll also provide more tips and information about parts 2 and 3 in lecture 14 (Fri. 4/13).

  • assign3 Grades Released Fri May 6 by Nick Assignment 3 grades have been posted to the Gradebook page, along with style feedback for the assignments. The quartiles of scores on the functionality portion of the assignment were as follows (/95): 1st quartile = 88, second quartile = 93, third quartile = 95. Rock on! See Ed for a more in-depth announcement about grading feedback.

  • assign4 Released! Thurs April 28 by Nick Assignment 4 has been posted on the assignments page. It is meant to reinforce the topic of generics, disclosure and partiality, void * pointers and function pointers, with exercises ranging from implementing your own version of the ls command to implementing your own version of the sort command. We hope you have fun with it! The assignment is due Wed 5/11 at 11:59PM PT. You can find more details on the assignment page.

  • assign2 Grades Released Wed April 27 by Nick Assignment 2 grades have been posted to the Gradebook page, along with style feedback for the assignments. The quartiles of scores on the functionality portion of the assignment were as follows (/94): 1st quartile = 85, second quartile = 90, third quartile = 93. Awesome job! See Ed for a more in-depth announcement about grading feedback.

  • Midterm Exam Tues. 5/3 7-9PM Mon April 25 by Nick The CS107 midterm exam is on Tuesday May 3 from 7-9PM in 420-040 / STLC 111 (depending on last name). Please see the midterm exam webpage for information about the exam, review materials and study tips. If you have academic accommodations (e.g. OAE) or athletics accommodations, or if you do not have a workable laptop for the exam, please let the instructor know by Wednesday, April 25. Limited charging outlets will be available during the exam. If you have an academic or University conflict with the midterm time, and absolutely cannot make the regularly scheduled midterm, you must send a request by email to the instructor by Wednesday, April 25 to arrange an alternate exam time. Please include in your email all the possible times you are able to take the exam from Monday, May 2 to Wednesday, May 4. Any alternate midterm exam must be within this window.

  • assign3 Released! Thu April 21 by Nick Assignment 3 has been posted on the assignments page. It is meant to reinforce the topic of pointers, arrays and heap allocation, with exercises ranging from implementing a convenient version of a C file I/O function to implementing your own versions of the Unix "tail" and "uniq" commands. We hope you have fun with it! The assignment is due Wed 4/27 at 11:59PM PT. You can find more details on the assignment page.

  • assign1 Grades Released Wed April 20 by Nick Assignment 1 grades have been posted to the Gradebook page, along with style feedback for the assignments. The quartiles of scores on the functionality portion of the assignment were as follows (/90): 1st quartile = 80, second quartile = 86, third quartile = 90. Awesome job! See Ed for a more in-depth announcement about grading feedback.

  • assign2 Released! Wed April 13 by Nick Assignment 2 has been posted on the assignments page. It is meant to reinforce the topic of C Strings and thorough documentation, with exercises ranging from implementing tools to display environment variables to implementing your own version of the Unix "which" command. We hope you have fun with it! The assignment is due Wed 4/20 at 11:59PM PT. Note that starting with this assignment, part of your style grade will be dependent on having no code issues when run through the codecheck tool. You can find more details on the assignment page.

  • assign0 Grades Released Tues April 12 by Nick Assignment 0 grades have been posted to the Gradebook page, along with style feedback for the assignments. The quartiles of scores on the functionality portion of the assignment were as follows (/26): 1st quartile = 25, second quartile = 26, third quartile = 26. Way to go! Check out Ed for a short debrief of the assignment.

  • assign1 Released! Tues April 5 by Nick Assignment 1 has been posted on the assignments page. It is meant to reinforce the topics of bits, bitwise operators, and integer representations, with exercises ranging from implementing the core "saturated arithmetic" algorithm to a bit-level cell simulation to understanding the effects of integer representations on real-world software. We hope you have fun with it! The assignment is due Wed 4/13 at 11:59PM PDT. You can find more details on the assignment page.

    As you start working, we want to include a reminder about the course style guide; it contains an in-depth reference about how to ensure your programs have great style! We have also added a new codecheck tool to this assignment - check out the spec for more information. Additionally, through TA helper hours and the discussion forum, our focus will be on supporting you so that you can track down your own bugs. Please ask us how to best use tools (like the brand-new GDB!), what strategies to consider, and advice about how to improve your debugging process or track down your bug. If you have debugging questions during helper hours, please make sure to gather information and explore the issue on your own first, and fill out the QueueStatus questions with this information. Starting with a future assignment, we will require this information when signing up for helper hours for debugging help, so please make sure to provide as much information as possible.

  • Lab Assignments PostedMon. April 4 by Nick We have posted lab assignments - you can view your assignment from the "labs" dropdown in the top toolbar. We did our best to assign everyone to one of their top choices. On this form, if you'd like, you can also join a different lab with space available. Unfortunately, if a lab is full, we are not able to accommodate additional students at this time, but check back later, as enrollments may shift over time.

    Labs start Tues., and for this first lab make sure to watch the 2 pre-lab-1 videos posted on Canvas to get you going with the problems you'll be working on this week! (this is just for lab1, there is normally no prep work required for labs). In lab, your lab leader will introduce themselves and explain everything about lab and what it's all about. You can find more information about labs and lab policies on the course information page. We'll see you in lab this week!

  • Lab Signups Open 5PM Tues. until Sat. 5PM Tues. March 29 by Nick Lab preferences submissions open today at 5PM! Anytime until Saturday at 5PM PDT, please submit your lab preferences for which lab you would prefer to attend this quarter. Note that preferences are not first-come first-serve; you may fill out your preferences anytime between those dates, and you may come back to update your preferences later as well. You can access the preferences form in the "Labs" dropdown at the top of the page. For more information about labs including attendance, missing labs, and other policies, see the labs section of our course syllabus.

  • Apply to CS 107A! Mon. March 28 by Andrew If you're looking for more practice and support as you take CS 107, consider applying for CS 107A! CS 107A is held Tuesdays and Thursdays from 4:00-5:00pm PT, and is a 1-unit companion course to CS 107. Enrolling lets you attend section (review of course material and practice problems), attend CS 107A-specific office hours, and come to exam review sessions. Everything CS 107A-related (including a more detailed syllabus) can be found on the course website, cs107a.stanford.edu. You can also contact Andrew (adbenson@) with any questions.

  • Assignment 0 Posted Mon. March 28 by Nick Assignment 0 has been posted under the assignments tab. It is meant as an introduction to Unix and C, with exercises ranging from uncovering who got unauthorized access to a filesystem to modifying a provided C program to accept command-line arguments. We hope you have fun! The assignment is due Mon. 4/4 at 11:59PM PST, and there are no late submissions accepted for this assignment (late days or otherwise), so please make sure to submit by the deadline.

  • Welcome! Sun March 27 by Nick Welcome to CS107! Class starts on Monday, March 28th at 1:30PM in Bishop Auditorium. We are looking forward to meeting you and starting off a great quarter together! We'll have more details to come about the details of CS107's fall offering. In the meantime, please feel free to check out the updated FAQ. It covers questions about recorded lectures, conflicting classes, CS107E, CS107A, and more. We hope you find it helpful! SCPD students, please check out our SCPD handout for more information on SCPD logistics.

Course Logistics

Lectures: Mon & Fri 1:30PM-3PM in Hewlett 200

Labs: Tue/Wed/Thu at various times; students sign up for labs after the quarter begins.

Exams:

  • Midterm Exam
    Date/Time: Tuesday, May 3rd, 7PM-9PM
    Locations: Hewlett 200 and STLC 111 (see page below for more info)
    Info: midterm webpage

  • Final Exam
    Date/Time: Tuesday, June 7th, 12:15-3:15PM
    Location: TBD
    Info: final exam webpage

Feedback

  • How are we doing? Submit anonymous feedback here.

Course Staff

Instructor email: troccoli@stanford.edu
Visit the Getting Help page for more information about how to contact the course staff.

Aditi Gaur

Colin Schultz

Connor Meany

Gurdeep Sullan

Hannah Zhang

Hanson Lu

Jasmine Shih

Jonathan Kula

Makena Low

Megan Worrel

Ofure Ebhomielen

Ricardo Iglesias

Ryan Guan

Seiji Eicher

CS107A CA: