Linux Opening Essays

After nine years of mediocre work, finally decided to learn a good 0perating systems: operating system. After many twists and turns after joining the caravan to learn Linux. Just like the beginning of the history of Linux, understanding a thing can better understand this thing.

My opening study blog also starts with the history of Linux

In the previous work has been on the Linux is a high feeling, so remote unreachable, also has been heard that the various relationships between Linux and Uuix is simply by Kenthompson, Dennis Ritchie and Douglas McIlroy developed Unix at T's Bell Labs in 1969, but at the time, Bell Labs couldn't sell the OS because of antitrust problems and someone wanted to provide it (because it wasn't the main business of the During this period, the BSD Unix development and release of the University of California, Berkeley, began sales. Then Bell Labs was separated from the T-T, so Bell Lab and BSD's spat began. (This spat indirectly facilitated the growth of two super companies, Microsoft, and Apple) tracking all the source code of the original Bell Labs Unix in BSD. So Unix started charging. So many universities and research institutions are not able to use UNIX for free to teach.

Andrew S. Tanenbaum, professor of computer science at the University of Vrije, Amsterdam, Netherlands, is very annoyed, good you a UNIX charge not let me good teaching I write a so minux was born. But the old man is stubborn to refuse external source code and modification. So his students Linus Torvalds is also uncomfortable you do not let me change my own writing, so the Linux kernel was born and announced to join the gun. Integrity at the time, gun needed an operating system; so they combined. To be exact, we should be studying gun/linux now.

§1991.10.5 published an article in the Comp.os.minix discussion area of the Internet, suggesting that he was developing an operating system that would go beyond Minix, announcing the birth of Linux.

§ 1994, the advent of Linux1.0

§ 1999, the advent of Linuxkernel 2.2

§ 2001, the advent of Linuxkernel 2.4

§ 2003, the advent of Linuxkernel 2.6

§ 2012, the advent of Linuxkernel 3.5.3

§ 2013, the advent of Linuxkernel 3.11.2

Linux kernel version and release version

       §linux kernel version number naming is a certain rule, the format of the version number is usually composed of 3 parts, in the form of: 650) this.width=650; "Src="/e/u261/themes/ Default/images/spacer.gif "alt=" * "style=" Background:url ("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd; "/> Major version number. minor version number. Correction number 650) this.width=650; src=/e/u261/themes/default/images/ Spacer.gif "alt=" * "style=" Background:url ("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px Solid #ddd; "/> Major version number: Marks important functional changes, usually over a period of time more stable. 650) this.width=650; "src="/e/u261/themes/default/images/spacer.gif "alt=" * "style=" Background:url ("/e/u261/lang/ Zh-cn/images/localimage.png ") no-repeat center;border:1px solid #ddd;"/> Minor version number: Also indicates that there is an important function change, if it is an even number, Indicates that the kernel is a stable version that can be used, and if it is an odd number, it means that the kernel has added new features to some tests and is a less stable beta that may have bugs inside. If the 2.5.74 represents a beta kernel, 2.6.22 represents a stable version of the kernel. 650) this.width=650; "src="/e/u261/themes/default/images/spacer.gif "alt=" * "style=" Background:url ("/e/u261/lang/ Zh-cn/images/localimage.png ") no-repeat center;border:1px solid #ddd;"/> FixNumber: Refers to a slightly revised kernel, the larger the number, indicating that the more the number of changes, the version is relatively more complete. In the case of 2.6.22, 2 represents the major version number, 6 represents the minor version number, and 22 represents the revision number. Represents the 22nd revision of the kernel version 2.6.

§linux has many distributions and currently has more than 400 Linux distribution (release kits)

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Reference network: Wikipedia http://zh.wikipedia.org/wiki/Category:Linux version

UNIX class operating system time graph

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Linux Opening Essays