-
Anonymous users2024-02-05Linux kernel (English: Linux kernel), used in UNIX-like operating systems, the operating system kernel of the Linux family, written in C language, conforms to the POSIX standard, released under the GNU General Public License, and is currently the most popular free computer operating system kernel. Linux was first developed by Finnish hacker Linus B
Torvalds) was developed in an attempt to provide a free and free UNIX-like operating system on Intel's x86 architecture. The project began in 1991 when Linus Tovarz posted a post on the Usenet newsgroup,[3] which marked the official start of the Linux project.
Most operating systems based on the Linux kernel use a large amount of GNU software, including a shell program, tools, libraries, compilers, and tools, as well as many other programs, such as emacs, vi. Because of this, Richard Matthew Stallman, the founder of the GNU project, proposed that the Linux operating system be renamed GNU Linux, but most people still habitually use "Linux".
Most Linux systems also include programs like XFREE86, which provides a GUI interface. With the exception of a few experts, most people don't choose every component or set it up themselves, but use Linux distributions directly.
-
Anonymous users2024-02-04Speaking of the birth of Linux, I have to mention UNIX, if there is no UNIX, there would be no Linux, so what is the relationship between UNIX and Linux? Let's take a quick look at the history of UNIX and the birth of Linux in chronological order.
The history of Linux is closely related to GNU. The GNU project began in 1983 with the aim of developing a free, complete UNIX-like operating system, including software development tools and various applications. By the time the Linux kernel was released in 1991, GNU had almost completed the development of all the necessary software except for the system kernel.
Thanks to the efforts of Linus Torvalds and other developers, GNU components can run on top of the Linux kernel. The entire kernel is based on the GNU General Public License, which is the GPL (GNU General Public License), but the Linux kernel is not part of the GNU project. In March 1994, the Linux version was officially released, and Marc Ewing created Red Hat software, becoming one of the most famous Linux distributors.
Strictly speaking, the word Linux itself refers only to the Linux kernel, but in reality people have become accustomed to using Linux to describe the entire Linux-based kernel and using GNU engineering tools and applications (also known as GNU). linux)。Linux software based on these components is called a Linux distribution.
Typically, Linux distributions contain a large amount of software, such as software development tools, databases, web servers (such as Apache), X Window, desktop environments (such as GNOME and KDE), office suites (such as etc.).
Between 1991 and 1995, Linux evolved from a conceptual kernel prototype to a dedicated Unix operating system that was comparable in terms of performance and features, and beat Unix in some important statistics, such as continuous normal business hours. Most of them. In 1995, Linux found its own killer application, the open-source web server Apache.
Like Linux, Apache is also very stable and efficient. Soon, Linux machines running Apache became the preferred ISP platform of choice worldwide. About 60% of the sites use Apache, easily beating the other two major proprietary competitors.
Today's LAMP (Linux, Apache, MySQL, PHP) has become the go-to for building web servers.
Go to bed at 10 o'clock at night at the latest but more than 11 o'clock, the best time for beauty sleep is from 10 o'clock in the evening to 2 o'clock in the middle of the night, this time period of the body's various functions begin to carry out corresponding detoxification activities, night is our most vigorous metabolism time, we must use this time to achieve the effect of sleep beauty.
Step by step, it is not good to wean suddenly, so that the child can not accept. If the child is more than 4 months old, you can gradually add complementary food, reduce the number of breastfeeding, if the original is 8 times a day of breastfeeding, it can be reduced to 7 times a week, add a complementary food, if the child adapts well, the next week can be reduced to 5 times of breastfeeding, and gradually wean off breast milk. It is best mixed with more nutritious milk powder, such as Shengyuan Yili Duomez.
In the conditions that arise are met. Electricity is a phenomenon in which positive and negative charges (electrons) meet and emit energy. For example, lightning is produced when the positive electricity (positive electricity) carried by the cumulonimbus clouds in the high sky and the negative electricity (negative electricity) in the lower layers or on the ground attract each other. >>>More
These are a matter of proficiency, first of all, you have to understand the skills of your heroes, the skills of the opposite hero, whether you will be stunned in the past, whether you can kill, whether you can control, whether you can come back alive. That is to say, before you rush, you have to know a little bit about the consequences of rushing over, and you have nothing to say when you kill halfway. Knowing how much damage you can do and how much help you can give your teammates is a matter of how good you are at the game. >>>More
Around 6 to 7 months of age, babies may be able to start crawling soon after they are able to sit firmly on their own without support. Next, your baby will look up and look around. The muscles in his arms, legs, and back were strong enough to keep him from falling when he supported himself with his hands and knees. >>>More