HURD

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Hurd

The GNU (Gnu is not Unix) initiative of the Free Software Foundation was foundet in 1984 by Richard Stallman and has the goal to providing free software and a free operating system kernel. Together with software from the GNU project it shall form a complete free operating system. Different servers which stand for the file system, network and other functions are based on the Mach Mikrokernel. The first (test) release since the beginning of the development of the GNU Hurd Kernel was in August 1996. The completion of version 1.0 was planned for the 1st quarter in 2003.

- till now only for the 32-bit x86 architecture
- licensed under the GPL licence
- built up completely modularly
- look & feel like Unix - but doesn't based on Unix!
- emulate a Unix environment by POSIX Wrapper, compatibly
- offers ANSI C development environment
- Mach Microkernel
- only base functions like scheduling run directly in the Kernel
- file systems (proc, ext2fs, ufs) and network services (auth) runs in Userland
- supports multi-threading

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