MIT teaches OS by having students hack xv6, a ~6,000-line Unix V6 reimplementation

blaizedsouza · x · 2026-09-23

MIT's operating systems course hands students xv6 — a complete Unix-like kernel of roughly 6,000 lines, inspired by Unix V6 — and asks them to modify it. It covers processes, system calls, virtual memory, and filesystems, and remains a popular open-source teaching codebase.

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