A/UX AtheOS BeOS BIOS Conferences CP/M DOS FreeBSD GEOS GNU Hurd Inferno Linux Mach Macintosh OS Magic Cap	Microsoft Windows Minix Multics NetWare NextStep OS Boot Managers OS/2 OSF DCE OSF/1 Plan 9 Real-Time S/390 UNIX VMS X Window System Xinu
86open Project - Unix-on-Intel players work on a common binary. Amoeba - a distributed operating system that is freely available via the Internet for educational and research users BlueOS - ports the BeOS to Linux. EROS - background, documentation, notes, and downloads for the small, secure, real-time operating system that provides orthogonal persistence. FreeOS.com - provides articles, documentation, download sites, news, links and more relating to free operating systems. Grasshopper Operating System JeniOS - seeks designers and programmers to contribute to te development of a new, free, UNIX-style operating system. K42 - high performance, general-purpose operating system kernel for cache-coherent multiprocessors. Kerneltrap.com - news, information, and discussion hub for software engineers and hobbyists interested in low-level systems programming and kernel development. legOS - open source Mindstorms OS. Offers preemptive multitasking, energy saving, dynamic memory management, native access to display, buttons, IR communication, motors, and sensors. Living Without Microsoft - news, FAQs, and essays devoted to Open Source and proprietary alternatives to Microsoft products. Lockergnome - offers a variety of daily newsletters regarding technology and computing.	Menuet OS - downloadable OS written in assembly. Multi-booting Revolution, The - short analysis of the options available to those looking to run multiple operating systems from a single hard disk. Multiuser DOS - Information, software, patches, and support for the IMS Multiuser DOS real time operating system. MyDesktop.com - covering all aspects of Windows95/NT information, including software, reviews, tips, games, features, and support. Nemesis - design is geared to the support of time-sensitive applications requiring a consistent Quality of Service (QoS), such as those which use multimedia. Operating System Comparison OS Dev's Circle - resource for operating system programming and development. OS Files, The - brief overview of the various operating systems available today. OS News - covering alternative computing environments and technology. OS/C - microkernel operating system designed to perform network activities without excessively engaging system resources. osOpinion - daily computer and operating system news and opinion commentary. PetrOS - 32 bit operating system for PCs, from Trumpet Software.