Building and running ancient Linux on Windows
A ZXMMC mass storage device FID driver for CP/M
cMIPS - an FPGA ready VHDL model for 5-stage pipeline, MIPS32r2 core
A new OS
A small operating system, compatible with MS-DOS, written in assemly
Command shell & program launcher - for the Apple II
Graphics mode console I/O for the TRS-80 Color Computer
Nanux Kernel
Danja Operating System
LED Color Control System for RaspberryPi and Dreambox
Mayax is a 32-bit hobby OS with windows style GUI.
Tarbox OS is a minimalistic 16 bit OS being developed in x86 Assembly.
an os for x86 computers based on mikeos
A new simple operating system
PrimOS is a 32bit multi-task OS, which is still under development.