What is xv6?

This repository contains completed coursework for MIT's operating systems class. Specifically, it holds solutions to lab assignments based on xv6, which is a teaching version of Unix, one of the foundational operating systems that influenced almost every computer system used today. xv6 is a simplified operating system built from scratch that teaches how computers actually work under the hood. Instead of studying a massive, complicated system like Linux, students learn by implementing a minimal but functional OS in the C programming language. The course asks students to add features and fix problems in xv6 to understand how operating systems manage tasks, memory, file systems, and user programs. This is a hands-on way to learn what happens when you run a program on your computer. The README doesn't provide details about which specific labs are included or what features were implemented, so you'd need to explore the code itself to see what assignments were completed. This is a personal submission for an MIT course (6.828 from 2019), so it's primarily useful as a reference if you're taking that same class or learning about OS design. If you're studying for a similar operating systems course or want to understand how Unix-like systems work at a fundamental level, looking at how someone solved these problems could be instructive, though you'd ideally want to solve them yourself first to learn properly. The fact that this focuses on RISC-V (a modern processor architecture) rather than older hardware makes it more relevant to current computer design, even though the underlying OS concepts haven't changed much since the 1970s.