GrapeOS操作系统完整源码。

LiteOS kernel for embedded devices with rich resources | 适用于资源较丰富嵌入式设备的LiteOS内核

OpenCloudOS-Kernel is the kernel of OpenCloudOS release, which has been fully optimized. If you would like to get more information, please read the wiki page of this project.

Going to be the next generation teaching operating system.

简洁易用的嵌入式操作系统内核。交流QQ群:317930646

ReactOS是开源的Windows替代品.

qemu is a generic and open source machine emulator and virtualizer.

微内核类Unix操作系统内核，支持x86/x86_64，arm64和RISC-V

OneOS是中国移动针对物联网领域推出的轻量级操作系统，具有可裁剪、跨平台、低功耗、高安全等特点，支持ARM Cortex-M/R/A、MIPS、RISC-V等主流CPU架构，兼容POSIX、CMSIS等标准接口，支持Micropython语言开发，提供图形化开发工具，能够有效提高开发效率并降低开发成本，帮助客户开发稳定可靠、安全易用的物联网应用。 官网地址：https://os.iot.10086.cn/

超轻量级实时操作系统，适合在8051为内核的MCU上运行，专门为小型家电及简易物联网终端设计。