History of MINIX 3

MINIX has a long history. It goes back to 1987 when the first edition of the book Operating Systems: Design and Implementation by Andrew S. Tanenbaum was published. The first version of MINIX was intended for teaching and it became very popular very quickly. One of the early users was a Finnish student, Linus Torvalds, who learned all about operating systems from reading the book and modifying the system. Eventually he went on to write his own operating system, Linux. In 2004, a man named Ken Brown accused Torvalds of copying MINIX verbatim, but that was quickly refuted in a statement published 20 May 2004 by Andrew Tanenbaum. A second edition of MINIX (and a second edition of the book, coauthored by Albert S. Woodhull) was released in 1997. This version was greatly improved from the first version but was still aimed at teaching operating systems to a large extent. It was only with the third version, MINIX 3, and the third version of the book, published in 2006, that the emphasis changed from teaching to a serious research and production system, especially for embedded systems. A few of the many differences between MINIX 2 and MINIX 3 are given here. Going forward, we are making a serious effort to turn MINIX 3 in an industrial-grade system with a focus on the embedded market, especially for those applications that need high reliability and availability.

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Overview Of Linux History

• U N I X

We read Unix history before starting linux history, because unix know as father of linux. This Unix os was implemented in 1969 at AT & T's bell laboratories in the united state by ken thompson, denis Ritchie, Douglas mcllroy, and joe osscinna.

It was first released in 1971 and was initially entirely written in assemble language Unix was rewritten in the programing language "C" by dennis retchic (with exception to the kernel and I/O).The availability of a os written in a high-level language allowed easier. Portably to different computer platform and unix become widely adopted by academic installation and businesses.

It was not open source code operating system.

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• GNU PROJECT

"The name GNU is a recursive acronym for "GNU" not unix !" The Gnu Project started in 1983 by Richard Stallman had the goal of creating a “complete Unix-compatible Software system" composed entirely of free software work begin in 1984. later in 1985, stallman created the free software foundation and wrote the GNU-general Public lincese (GNU-GPL) in 1989 by the early 1990's, many of the programs required in an OS. (Such as libraries, compilers, text editor a unix shell, and a windowing system) were completed although low-level elements such as device drivers, daemons and the kernel were stalled and incomplete.

• MINIX

Minix was an inexpensive minimal unix-like OS, designed for education in computer science, written by andrew S. Tanenbaum ( Now Minix is free and redesigned also for "Serious" Use.)

• Linux

The 1991 while attending the university of helsinki, Linus benedict Torvalds began to work on a non-commercial replacement for minix which would eventually become the linux kernel Torvalds began the develapment of linux on minix and applications. written for minix were also used under linux, later linux matured and it become possible for linux to be developed under itself also GNU applications replaced all minix ones because with code from the GNU system freely available Torvalds make to a fully functional and free OS (open source code).
The first linux kernel started independently by linux torvald in 1991 and linux version 0.01 was released under the GPL in 1992.

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