Computer operating system

Linux is a computer operating system. The kernel name of the Linux operating system is also "Linux". Linux operating system is also the most famous example in the development of free software and open source.

Linux kernel was originally written by Finnish Linus Torvalds (the most famous computer programmer and hacker in the world today) out of personal interest when he was studying at Helsinki University. At that time, he was not satisfied with Minix, an operating system for teaching. Originally conceived, Linux was an operating system like Minix. The first version of Linux was released on the Internet in September of 199 1 by Ari Lemmke, the administrator of FTP server in university. At first Torvalds called this kernel "free", which means the combination of freedom and strangeness, and attached the common letter "X" to match the so-called UNIX-. But the FTP server administrator didn't like the original name of "Freax" and changed the name of the core to "Linux". At that time, there were only 65,438+00,000 lines of code, which still had to be executed on the Minix operating system and booted by the hard disk. Then the second version (version 0.02) was released in June 5438+10, and college students in Helsinki, Finland left a message on comp.os.minix:

Hello, everyone who uses minix-

I'm making a (free) operating system (just a hobby,

Not as big and professional as gnu) is cloning human 386(486).

UNIX，

UNIX is a powerful multi-user and multi-task operating system, which supports multiprocessor architecture. It was first developed by ken Thompson, dennis ritchie and Douglas mcilroy in 1969 in Bell Labs Development Department of AT&T Company. After long-term development and improvement, it has grown into a mainstream operating system technology and a large family of products based on this technology. Because UNIX has the characteristics of mature technology, high reliability, strong network and database functions, outstanding expansibility and good openness, it can meet the actual needs of all walks of life, especially the needs of important business of enterprises, and has become the main workstation platform and important enterprise operation platform.

It used to be the first choice of server operating system, occupying the largest market share, but recently it lost in the competition with WINDOWS SERVER and Linux.

Operating system /2

OS/2 is an operating system jointly created by Microsoft and IBM, and later developed by IBM alone. OS/2 is the abbreviation of "Operating System /2" because it was introduced as an ideal operating system for IBM's second generation PC PS/2 system product line.

QNX

QNX is a real-time operating system developed by QNX Software System Co., Ltd. ..

Ai Du Bentu

Edubuntu is used in primary and secondary schools all over the world. This is a good teaching tool. Edubuntu software package is a special distribution of ubuntu for the field of education, which is often called "Linux for young people" and is very distinctive. The source of this combination word is: education+Ubuntu = education. Edubuntu is a derivative of ubuntu's official support, which is customized for education. For more information about the Edubuntu project, please refer to official website.

Human nature

Mark Shette Voss, the founder of Ubuntu

Ubuntu was founded by Mark Schetter Voss, and the first version was released in 101October 20th, with Debian as the development blueprint. But its goal is to release a new version every six months, so that people can get new software more frequently. It was developed to make personal computers easy to use, but there is also a server version. Each new version of Ubuntu will contain the latest version of GNOME desktop environment, and will be released within one month after the release of the new version of GNOME. Compared with previous Debian-based Linux distributions, such as MEPIS, Xandros, Linspire, subdential and Libranet, Ubuntu is closer to Debian's development philosophy, because it mainly uses free open source software, while other distributions will come with many closed source plug-ins.

Ubuntu's software suite is mainly based on the unstable branch of debian: whether it is its software suite format (Deb) or software management installation system (Debian Apt/Synaptic). Ubuntu will immediately feed back all changes in the software suite to Debian, instead of announcing these changes when the new version is released. In fact, many Ubuntu developers are the maintainers of Debian's main software suite. But the software suites of Debian and Ubuntu are not necessarily compatible with each other. In other words, installing Debian's software package on Ubuntu may cause compatibility problems, and vice versa.

Ubuntu mainly relies on the support of Canonical Co., Ltd., but it is also assisted by enthusiastic people in the Linux community. Ubuntu developers often call Mark Schetter Voss SABDFL (short for self-proclaimed benevolent lifelong physician, that is, self-proclaimed benevolent monarch). On July 8, 2005, Mark Schetter Voss and Canonical Limited announced the establishment of Ubuntu Foundation, and provided it with $6,543,800+million as start-up capital. The foundation was established to ensure the sustainable development and support of Ubuntu in the future, but it was not put into operation until 2008. Mark Schetter Voss described the foundation as an emergency working capital in case of financial crisis of Canonical Limited.

Ubuntu's window operation has strong observability. Have extraordinary 3D special effects. Soft windows that can be deformed by dragging, wonderful cube desktop rotation, amazing flame figures … all these can be easily realized without high-end hardware support. Let you enjoy a more beautiful 3D desktop effect than any other operating system.

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That's all I found.