The resources provided below are useful references for those interested in learning more about the topics covered in the course.
UNIX®
The UNIX® Time-Sharing System, Ritchie, Dennis M., and Ken L.Thompson. Bell System Technical Journal 57, no. 6, part 2 (July-August 1978): 1905-1930. You read this paper in 6.033.
Intel® 80386 Programmer's Reference Manual, 1987 (HTML®). Much shorter than the full current Intel® Architecture manuals below, but describes all processor features used in 6.828.
AMD64 Architecture Programmer's Manual. Covers both the "classic" 32-bit x86 architecture and the new 64-bit extensions supported by the latest AMD and Intel® processors.