Operating Systems 2019W Lecture 12: Difference between revisions

Revision as of 23:52, 27 February 2019

Video

The video for the lecture given on February 27, 2019 is now available.

Readings

These Wikipedia readings are all optional; however, they will give you more background on the topics covered in lecture. Be sure to follow the references for the parts you find interesting!

And when you want to browse the Linux kernel source code:

Elixir cross reference of Linux at Bootlin

In-Class Notes

Lecture 12
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Licenses

In the beginning
* BSD license (3 clause)

Then there was
* SunOS/Solaris
* HP/UX
* AIX
* IRIX
...


And then came Richard Stallman
* founded the Free Software Foundation (FSF)
* came up with the idea of "copyleft"
* created the GNU General Public License (GPL)

But their kernel wasn't ready in the early 1990's

BSD had a kernel...but it was trapped in litigation

Linux stepped in to that gap

Hacking the kernel
------------------

Look at an online Linux cross reference to look around

But...develop a module if you can

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 ==Readings==
+These Wikipedia readings are all optional; however, they will give you more background on the topics covered in lecture.  Be sure to follow the references for the parts you find interesting!
+* [https://en.wikipedia.org/wiki/History_of_Unix History of Unix]
+* [https://en.wikipedia.org/wiki/Unix_wars Unix wars]
+* [https://en.wikipedia.org/wiki/UNIX_System_Laboratories,_Inc._v._Berkeley_Software_Design,_Inc. USL v. BSDi]
+* [https://en.wikipedia.org/wiki/Richard_Stallman Richard Stallman]
+* [https://en.wikipedia.org/wiki/Copyleft Copyleft]
+* [https://en.wikipedia.org/wiki/Open-source_license Open-source license]
+And when you want to browse the Linux kernel source code:
+* [https://elixir.bootlin.com/linux/latest/source/drivers Elixir cross reference of Linux at Bootlin]
 ==In-Class Notes==