**COS 417: Operating Systems (Spring 2026)** [Home](index.md.html) • [Syllabus](syllabus.md.html) • [Schedule](schedule.md.html) • [Assignments](assignments.md.html) • [Office Hours](calendar.md.html) • [Extra Resources](resources.md.html)
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(#) About This Course Welcome to the spring 2026 offering of *COS 417: Operating Systems*! This course provides a comprehensive introduction to the principles and practice of operating systems. We will cover topics such as processes, virtualization, memory management, concurrency, and I/O. The course will emphasize both theoretical foundations and practical implementation. This course has a prerequisite of COS 217, while COS 316, COS 333, COS 318, 375, and/or programming maturity is recommended. Experience with the C programming language is a must. Please contact the faculty instructors if you wish to take the course but do not currently meet these requirements. (#) Dates & Times
Lectures Mondays and Wednesdays, 2:55 pm - 4:15 pm (EDT) in Computer Science 105.
Precepts Students are required to register for a single precept section that meets once a week. Precepts have the following schedule: - P05 - led by Kevin Alarcón Negy Thursdays, 10:40 am - 11:30 pm in Julis Romo A02. - P06 - led by Amelia Dobis Thursdays, 1:20 pm - 2:10 pm in Computer Science 302. - P04 - led by Phyllis Wang Fridays, 1:20 pm - 2:10 pm in Friend Center 009.
Office Hours See calendar [here](calendar.md.html). (#) Course Staff
Faculty
Mae Milano headshot
[Mae Milano](mailto:mpmilano@cs.princeton.edu)
Kevin Negy headshot
[Kevin Alarcón Negy](mailto:kn3469@princeton.edu)
Graduate Teaching Assistants
Amelia Dobis headshot
[Amelia Dobis](mailto:ad4048@princeton.edu)
Leon Schuermann headshot
[Leon Schuermann](mailto:lschuermann@princeton.edu)
Phyllis Wang headshot
[Phyllis Wang](mailto:pw6807@princeton.edu)
(#) Contact Please use [Ed](https://edstem.org/us/courses/91523/discussion) for general course content questions and [Canvas](https://princeton.instructure.com/courses/20699) or email for direct questions that are private or sensitive in nature. ------------------------------------------------------------------------------- Website format based on Cornell University's [CS 1109 course website](https://www.cs.cornell.edu/courses/cs1109/2024su/). ![ ](images/cc-by-sa.png) Unless specified elsewhere on this page, this work is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](http://creativecommons.org/licenses/by-sa/4.0/).