An operating system based on the best Windows NT design principles
Boot macOS, Windows, and Linux on Mac or PC with UEFI or BIOS firmware
Version 2 of the myFocuser Project
AO RTOS is small real time OS based on Active Object concurrency model
Software development for 4Mb portable, using Z80 CPU and AA batteries
Modiifed BIOS for MK88 PC
A high quality MP3 encoder
C-BIOS is an open source BIOS for MSX computers.
OS-9/6809 compatible operating system for Tandy CoCo and Dragon
English Examples Projects for HC6800EM3 MCU devkit
8-bit home-made computer on Z80 CPU
Simplest kernel for cooperative multithreading
OS bootable from Linux,Windows and others partitions as auxiliary OS
A ramdisk on a Spectranet device FID driver for CP/M Plus
Message passing microkernel-based Operating System for ZX Spectrum +3e
Real time preemptive embedded multi-thread kernel
Real-Time Embedded Operating System
Ping-Pong-like game in Assembly that works without OS