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cfenollosa/os-tutorial

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cached 2026-03-31T10:18:00.987Z

cfenollosa/os-tutorial

cfenollosa/os-tutorial is a long-running but explicitly abandoned tutorial repository for building an operating system from scratch. It is highly popular, with 30,288 stars and 3,534 forks, and its README warns that readers should prefer more modern and authoritative OS resources if they want to learn OS design. The repo is organized as a step-by-step sequence of small lessons from bootsector basics through 32-bit mode, C integration, interrupts, video output, keyboard input, malloc, and a simple shell.

GitHub
Stars30,288
Forks3,534
Default branchmaster
Last pushed2026-02-04T09:33:56Z
Best maintainedNone
Closest to upstreammalwaredllc/os-tutorial
Most feature-richruiers/os-tutorial-cn
Most opinionatedruiers/os-tutorial-cn
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