General Information

Who should take 6.S081 // Communication // Grading // Labs // Text books // Homework // Collaboration // Class meetings // Staff // TA office hours

Who should take 6.S081

It is intended for undergraduates who enjoyed 6.004 and want to learn about design and implementation of operating systems, and their use as a foundation for systems programming.


We will distribute assignments on the course web site, and make all announcements through piazza. The course web site has the schedule for the term on the schedule page.

Grading policy

Grades in 6.S081 will be based on the results of:

You must submit all labs in order to pass the class.

There will be no quizzes and exams.


To turn in each lab, run make handin in your lab directory. The handin must be received by 11:59pm on the day that the lab is due. You can turn in as many times as you like before the deadline. We grade your final submission using make grade and publish your grade on the handin website.

You have a total of 72 late hours for the semester. Each hour late in excess of 72 hours will penalize your total lab grade by 1%, up to a maximum of 50%. Late hours are allocated greedily, so they are allocated to earlier labs before later labs. Due to institute regulations, late hours may not be used for the last lab (due in the last full week of classes).

Late hours are intended for cases where you fall behind due to illness, job interviews, MIT athletic events, deadlines in other classes, etc. For extensions under other extenuating circumstances, we require a letter from one of the student deans.

Lecture questions/Homeworks

The lecture questions/homeworks are intended to make you think about the lecture topic. They are due before the start of lecture (i.e., 1pm) on the specified due dates. We would appreciate if you submit lecture questions well before 1p (e.g., the night before) so that we can prepare to answer your questions during lecture. We do not grade your answers for correctness, but merely check-off that you put reasonable effort into them. You can miss a few lecture questions/homeworks over the semester without any penalty.


6.S081 relies on the following books:


You are welcome to discuss the labs (and homeworks) with other students, but all of your written work and code must be your own and must carefully acknowledge all contributions of ideas by others, whether from classmates or from sources you have read. Please don't look at anyone else's code for the labs or homework. Please feel free to ask and answer questions on Piazza, about labs, homework, readings, and lectures.

Do not post your lab or homework solutions on publicly accessible web sites (such as GitHub) or file spaces (such as your Athena Public directory).

Class meetings

Lectures will be held on Monday and Wednesday from 1:00pm to 2:30pm in person. Masks are required and must be worn correctly. If you do not feel well, or test positive for Covid-19, do not attend class and contact us immediately. We will work with you (in coordination with student support services) to provide remote access to teaching materials as necessary. See MIT Now for the latest information.


Adam Belay

Teaching assistants
Jonathan Behrens (behrensj [at] mit [dot] edu)
Felipe Monsalve (monsalve [at] mit [dot] edu)
Cel Skeggs (cela [at] mit [dot] edu)

Staff mailing list, but we would prefer that you use Piazza.

TA office hours

Not finalized, will be posted soon.

Appointments with staff outside of the listed office hours can be setup via private Piazza post.

Questions or comments regarding S6.081? Send e-mail to the course staff at

Creative Commons License Top // S6.081 home // Last updated Wednesday, 22-Sep-2021 12:14:49 EDT