[Standards] UNIX

[Standards] UNIX
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From the 1980s, POSIX, an open standard operating system in development, IEEE POSIX standards developed UNIX system is now part of the foundation.

Free Unix-like system

Richard Stallman establishment of the GNU project to create a free UNIX-like system releases. 20, the project continue to grow and develop, including a growing number of content. Now, GNU project development of products, such as Emacs, GCC, and so has become a variety of other free UNIX-like products issued by the central role.

1990, Linus Torvalds decided to prepare its own core Minix, called the beginning of Linus' Minix, intended for the Minix kernel Linus, later renamed as Linux, the kernel released in 1991 and gradually arouse people's attention. When the GNU software combined with the Linux kernel, GNU software constitutes a POSIX compatible with the operating system GNU / Linux foundation. Today, GNU / Linux has become the most active development of the free / open source Unix-like operating system.

1994, BSD Unix embarked on the rehabilitation of the road. BSD also to the development of a number of different directions, which eventually led to the FreeBSD, OpenBSD and the emergence of NetBSD.