Agnix is a small operating system kernel for i386, supporting 32-bit protected memory mode, paging, hardware switched tasks, memory tests, PCI bus, devices, PCI IRQ routing, RT timers and network protocols.
LukOS is operating system written in C++
NotOS is multitasking, multithreading simple operating system based on monolithic kernel. NotOS haves paging-based memory management and software-based task switching. It works on Intel Pentium processor and others, based on Pentium.
Wspólny projekt społeczności OSDev.pl
Simple 32/64bit mode OS. Paging, handling exceptions IRQ INT, Basic: PIC/APIC, PCI, kbd, ps/2 mouse, ata. Thanks to wiki.osdev.org and (in alphabetical order): Kicer86, milyges, Nevar, webczat, Wojtulas. (IRC freenode #osdev.pl)