What is Linux_unix Linux

In August 1991, a student from Finland posted the following paragraph in the Comp.os.minix News Group:

Hello, all people using minix-I am doing a free operating system for 386 (486) at (just for hobbies, not as big and professional as GNU).
This student is Linus Torvalds, and what he says ' hobby ' becomes Linux that we know today.
Linux has caught the attention of hackers (hacker), which has joined Linux kernel development through computer networks, and Linux has tended to become a hacker's system----until today, kernel development is considered real programming in the Linux community. Thanks to the entry of a group of high-level hackers, Make Linux grow fast.

As a POSIX-like operating system with all the features, Linux is not developed by Linus alone, but by hundreds of programmers around the world. Interestingly, this huge worldwide development activity is not very coordinated. Of course, Linus the kernel, but Linux is not just the kernel. No management organization; a Russian student got a new motherboard and wrote a driver to support the motherboard. A system administrator in Maryland needs to back up the software, write one and pass it on to anyone who needs it. It seems that the right thing always happens at the right time.

By the end of 1993, at the beginning of 94, Linux 1.0 was finally born! Linux1.0 is already a full-featured operating system, and the core write compact and efficient, can give full play to the hardware performance, in 4 m memory of the 80386 machine also performed very well, so far people still relish this, But since the 2.1.XX-series Kernel Linux has started to go higher----hardware is growing too fast, but Linux will not lose its true nature. Linux has good compatibility and portability, and starts porting to other hardware platforms after version 1.3, Including the fastest CPU---Digital Alpha (at least the current frequency is the highest). So do not always connect Linux and low-end hardware platform to a piece, Linux development to today, this is a misunderstanding, it is only the performance of the hardware fully play out just, Linux will be swept from low-end applications to high-end applications!

One important thing about Linux's evolution is that Linux joins the GNU and follows the public Copyright license (GPL). This has greatly enhanced GNU and Linux, and almost all GNU libraries/software applications have been ported to Linux, improving and improving the usability of Linux, and GNU has a foundation, and I don't know if it's Gnulinux or Linux based GNU. :-) more important is to follow the public copyright license, in the spirit of the inheritance of free software on the premise, no longer exclusive of free software business practices (such as the packaging of free software to sell on CD-ROM), do not exclude businesses to further develop free software, do not exclude the development of commercial software on Linux.

Another interesting thing is that you can get Linux without spending money. You can get most of your software for free if you have time and are willing to download it.

In order to make Linux easy to use, Linux also has a number of release versions, the release version is in fact a complete set of program composition. Now that there are many different Linux distributions and their version numbers, in order to be confusing, let's explain some of the terms that are often mentioned.

When we refer to Linux, we generally refer to "Real Linux", the kernel, which is the "heart" of all Unix operating systems. But Linux does not become an available operating system. It also requires a lot of software packages, compilers, library files, Xwindow systems, and so on. This is why there are many different Linux distributions because of the different combinations and user-oriented objects.

There are a lot of Linux distributions, such as Slackware,redhat,suse,turbolinux,openlinux and more than 10 kinds, but also increase, note, strictly speaking, you can not say "Redhat Linux" "Suse Linux" " Slackwarelinux "And so on, Linux mainly refers to the operating system kernel, the original code for all distribution kernels is the same (but the integrated kernel version may vary depending on the release time).

More and more companies are developing commercial software on Linux or porting software from other Unix platforms to Linux, and today many of the IT industry's big shots are IBM, Intel, Oracle, Infomix, Sysbase,corel,netscape,ca, Novell etc have announced support linux! merchants to join to make up for the lack of pure free software and development barriers, Linux quickly spread to the vast number of computer enthusiasts, and into commercial applications, is to break some of the company's monopoly of the cultural circle of hope!!

Linux is developed by enthusiasts through the Internet, of course, its network function is very powerful, such as you can install Linux through Ftp,nfs, and so on to do gateway and so on. With the development of Linux, I am afraid that the application derived from Linus I originally expected, If someone used it to do the router, someone to do the embedded system, someone to do real-time system ... Shong Hand asked what Linux can do, in fact it is not like those who see the operating system, not what you can do with it, but what you want to do!

Thanks to the rapid development of the Internet, the world's program developers have a new way to communicate effectively. Thanks also to the GNU Project, which was hosted by Richard Stallman a few years ago. Linux became a complete operating system in a few years. Its energy is released, it becomes very reliable, and new improvements are added every day.

In order to make Linux easy to use, Linux also has a number of release versions, the release version is in fact a complete set of program composition. Now that there are many different Linux distributions and their version numbers, in order to be confusing, let's explain some of the terms that are often mentioned.

When we refer to Linux, we generally refer to "Real Linux", the kernel, which is the "heart" of all Unix operating systems. But Linux does not become an available operating system. It also requires a lot of software packages, compilers, library files, Xwindow systems, and so on. This is why there are many different Linux distributions because of the different combinations and user-oriented objects.

Linux is a uinux system that runs on a 386/486/pentium pc. Linux systems have all the latest UNIX features, including real multitasking, virtual storage, shared library functions, instant load, superior storage management, and TCP/IP,UUCP Network Tools. Linux systems and their development are all in line with POSIX standards. Its kernel supports Ethernet,ppp,slip,nfs,ax. 25,ipx/spx (Novell), NCP (Novell) and so on. System applications include a full set of Unix toolkits such as Tellnet,rlogin,ftp,mail,gopher,talk,term,news (TIN,TRN,NN). X graphics library, including Xterm,fvwm,xxgdb, Mosaic, XV, GS, Xman, and all X-win application tools. Commercial software has motif,wordperfect. Chinese tools have cxterm,celvis,cemasc,cless,hztty,cytalk,ctalk,cmail, etc., can process gb,big5,hz files. In addition, there are DOS simulation software, which can run the software under Dos/win.

Linux has developed rapidly in recent years due to its free access to system software and the low cost of hardware. Linux apps are thousands of megabytes in the software. From the DOS environment to touch the image, audio signal processing, from the game to Chinese software, all-encompassing. Major software companies have started to launch Linux versions of commercial software. Recently, the benchmark test of Linux shows that the pentium/100 speed can be sun/200 grate beauty. At the end of 94 at the Universal Conference Center in Washington, the World Congress of Linux, the major software companies have sent a strong team of delegations.