# How-to-Make-a-Computer-Operating-System

**Repository Path**: summer_xu/How-to-Make-a-Computer-Operating-System

## Basic Information

- **Project Name**: How-to-Make-a-Computer-Operating-System
- **Description**: How to Make a Computer Operating System in C++
- **Primary Language**: C
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-07
- **Last Updated**: 2021-01-21

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

How to Make a Computer Operating System
=======================================

**Caution**: This repository is a remake of my old course. It was written several years ago [as one of my first projects when I was in High School](https://github.com/SamyPesse/devos), I'm still refactoring some parts. The original course was in French and I'm not an English native. I'm going to continue and improve this course in my free-time.

**Source Code**: All the system source code will be stored in the `src` directory. Each step will contain links to the different related files.

**Contributions**: This course is open to contributions, feel free to signal errors with issues or directly correct the errors with pull-requests.

**Questions**: Feel free to ask any questions by adding issues. Please don't email me.

**Translations**: A Chinese translation is available at [How to Make a Computer Operating System in Chinese](https://github.com/Kroderia/How-to-Make-a-Computer-Operating-System-in-Chinese).

You can follow me on Twitter [@SamyPesse](https://twitter.com/SamyPesse) or support me on [Flattr](https://flattr.com/profile/samy.pesse) or [Gittip](https://www.gittip.com/SamyPesse/).

### What kind of OS are we building?

The goal is to build a very simple UNIX-based operating system in C++, not just a "proof-of-concept". The OS should be able to boot, start a userland shell, and be extensible.

[![Screen](https://raw.github.com/SamyPesse/How-to-Make-a-Computer-Operating-System/master/preview.png)](https://raw.github.com/SamyPesse/How-to-Make-a-Computer-Operating-System/master/preview.png)

### Summary

#### [Chapter 1: Introduction about the x86 architecture and about our OS](Chapter-1/README.md)

#### [Chapter 2: Setup the development environment](Chapter-2/README.md)

#### [Chapter 3: First boot with GRUB](Chapter-3/README.md)

#### [Chapter 4: Backbone of the OS and C++ runtime](Chapter-4/README.md)

#### [Chapter 5: Base classes for managing x86 architecture](Chapter-5/README.md)

#### [Chapter 6: GDT](Chapter-6/README.md)

#### [Chapter 7: IDT and interrupts](Chapter-7/README.md)

#### [Chapter 8: Memory management: physical and virtual](Chapter-8/README.md)

#### Chapter 9: Process management and multitasking

#### Chapter 10: External program execution: ELF files

#### Chapter 11: Userland and syscalls

#### Chapter 12: Modular drivers

#### Chapter 13: Some basics modules: console, keyboard

#### Chapter 14: IDE Hard disks

#### Chapter 15: DOS Partitions

#### Chapter 16: EXT2 read-only filesystems

#### Chapter 17: Standard C library (libC)

#### Chapter 18: UNIX basic tools: sh, cat

#### Chapter 19: Lua interpreter