Operating System

This NPTEL course from IIT Delhi teaches operating systems from the hardware upward. It starts with UNIX system calls and threads, then moves through the x86 instruction set and calling conventions before reaching the parts of the kernel that manage memory.

Memory and paging

A large share of the 40 lectures is spent on segmentation, trap handling, paging and page tables. Later sessions follow how address spaces are built with paging, how the translation lookaside buffer and large pages fit in, and how a kernel is loaded and its page table initialized.

Who it is for

• Students who want to see how an operating system works below the level of system calls.
• Learners who found process scheduling and virtual memory abstract in a textbook and want concrete mechanics.
• Readers comfortable with C and some assembly, since the course leans on x86 details.