Stable Linux 3.x
Kernel. Linux is a clone of the operating system Unix, written from scratch by
Linus Torvalds with assistance from a loosely-knit team of hackers across the
Net. It aims towards POSIX and Single UNIX Specification compliance. It has all
the features you would expect in a modern fully-fledged Unix, including true
multitasking, virtual memory, shared libraries, demand loading, shared copy-on-
write executables, proper memory management, and TCP/IP networking.