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Who are the authors of the pure Linux kernel from scratch, which was integrated with GNU tools and formed the full GNU/Linux Operating system in the 1990s? I have read some wiki articles but I haven't got any clear cut idea on the history.

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Did you try: simple.wikipedia.org/wiki/Linux ? –  alex Jan 10 '11 at 8:18

2 Answers 2

up vote 9 down vote accepted

The wikipedia page has a fairly clear history. Linus Torvalds, then a student, wrote his own kernel in the summer of 1991 because he was unhappy with the available Unix kernels: Unix itself (with the Bell Labs code) was extremeley expensive (even PC unices such as Xenix), there was Andrew Tanenbaum's MINIX but it was only available to purchasers of Tanenbaum's book, and Torvalds was unaware of the effort led by Berkeley University to produce a free Unix (BSD), and BSD didn't run on PCs yet at the time.

Since then, thousands of people have contributed to the kernel, most of them in the form of drivers.

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Richard Stallman, father of the GNU Project
Linus Benedict Torvalds, the author of Linux OS(Linux version 0.01 was released by mid September 1991).

The real story is :

Year 1991 :

DOS brought by Bill Gates was reigning the world of personal computers. The other player in the personal computer world was UNIX by Bell Labs, but it was extremely expensive and the source was not publicly available.

Then there was the MINIX by Andrew Tanenbaum, which was not a superb OS but made the source code was publicly available. Tanenbaum captured the souls of computer science with the elaborate and lively discussion of the art of creating a working OS. Students of Computer Science all over the world went through the book, reading through the codes to understand the very system that runs their computer, and one of them was Linus Torvalds.

The GNU project created a lot of the tools line GCC, etc. but still there was no OS.

For rest of the story and how Linux was written please read through the following link.

Linux History Time line :

alt text

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The kernel itself doesn't derive from the GNU project, but the GNU project is relevant because it made gcc, which as far as I know Linux used from the start. The MINIX source code was then not open source, you had to have purchased Tanenbaum's book. –  Gilles Jan 10 '11 at 8:25
    
@Gilles: You are right.. –  Sen Jan 10 '11 at 8:31
    
@Renjith: When you down vote an answer could you please put the reason also, so that i can improve my future answers on the forum. –  Sen Jan 10 '11 at 9:26
    
Thank you very much for your answer , It is nothing like that as per your words. –  Renjith G Jan 10 '11 at 11:03

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