MyOS

MultiTask Operating System Running on single core IA32 processor Intel PentiumII

it was designed to run on my PentiumII PC when I was in college 2003~2005

• supports IA32 only
• single core OS
• IA32 protected mode
• user application on ring 3
  • init
  • idle
• kernel and driver on ring 0
• IA32 segment management
• memory management
• FAT16/32 file system
• PCI enumeration
• IDE hard drive

2025 Aug 28

Now you can load floppy disk image to v86 project

although it cannnot fully run, but as least you have something on the screen

2022 Feb. 19 wake up OS

Demo Video

https://www.bilibili.com/video/BV1YS4y1r77n?share_source=copy_web

How to build

https://github.com/cpuwolf/myos-ia32/wiki/Build-on-Ubuntu-18.04-x86_64

How to run

https://github.com/cpuwolf/myos-ia32/wiki/Run-OS-on-Oracle-VirtualBox