CSE 451 is an undergraduate course on operating systems. In lectures we will cover xv6, a Unix-like teaching operating system. You will develop your operating system, called JOS, for a standard x86-based personal computer. At the end of this class you will be able to find your way around the source code of most operating systems, and more generally, be comfortable with systems software.


Lecture GLD 322, MWF 11:30–12:20
Section AB EEB 025, Th 1:30–2:20
Section AC GUG 218, Th 11:30–12:20


Lecturer Xi Wang, Allen Center 560, W 12:30-1:30
TA John Feltrup, Allen Center 021, F 10:30-11:20
TA Megan McGrath, Allen Center 021, M 10:00-11:00


The staff mailing list is , but we would prefer that you use the discussion board whenever possible.

You may subscribe to the course calendar using the following URL (e.g., in Apple or Google Calendar):



This course reuses much of the material from past CSE 451 and MIT’s 6.828 / Caffeinated 6.828. Special thanks to 6.828 staff for xv6 and JOS.