Shulou(Shulou.com)06/02 Report--

This article mainly introduces "what are the six functions of the Linux operating system". In the daily operation, I believe that many people have doubts about what the six functions of the Linux operating system are. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "what are the six functions of the Linux operating system?" Next, please follow the editor to study!

First, programming ability

Linux comes from a group of real hackers. Although people are used to thinking that Linus is the creator of Linux, and among the thousands of files included in linux, there is also a file called Credits that records the names and e-mail addresses of major LinuxHacker (this list contains more than 100 names, all over the world), but no one can say exactly how many people are involved in the improvement of Linux. Today, the game has not stopped with the passage of time, on the contrary, it is loved by many people because of the increasing popularity of Linux. So starting to use Linux is like joining a master programming organization. You can keep abreast of the latest developments in this field from a corner of the earth through the Internet; if your English is good enough, join a discussion group and you can get tips from secret experts from somewhere. Because of the existence of GPL, you can also get open source code, so you don't have to worry about the source of learning materials?

With the involvement of more professional companies, the development tools that Linux can provide become more and more powerful. For example, TurboLinux has a powerful application development environment, providing a variety of application development tools, compilers / interpreters for many languages such as C, C++, Java, Perl, Tcl/tk, Python and Fortran77, as well as integrated development environment, debugging and other development tools. Another example is the PhoenixObjectBasic developed by JanusSoftware Company, which is called Linux version VB, which is a unique set of object-oriented LinuxRAD (RapidApplicationDevelopment, rapid application software development tool). It integrates the powerful functions of object-oriented programming languages such as Python and Perl, and provides ease of use similar to VisualBasic. Programmers who are familiar with VisualBasic in Windows environment can use PhoenixObjectBasic.LynuxWorks 's VisualLynux as well as Microsoft's VisualC++. It integrates Microsoft VisualC++ development tools to support Linux operating system products. It is not only compatible with LynuxWorks's BlueCatLinux, but also compatible with other Linux2.2.12 versions. LynuxWorks even claims that VisualC++ has the ability to develop embedded Linux applications since then. Embedded Linux system is very popular now, and it has been widely used in all kinds of communication basic products. I think some VisualC++ users may be tempted by this and want to give it a try.

Powerful development tools + open source + master click, what is the result? Programming fanatics already know that. Therefore, it is strongly recommended that people who have a passion for programming and always like to use programs to solve problems use Linux to have the first weapon provided by Linux-programming capabilities.

Second, networking ability

The networking ability of Linux is very strong, and its TCP/IP code is the most advanced. Linux provides full support for the current TCP/IP protocol and includes the next generation of Internet. Support for the protocol Ipv6. The Linux kernel also includes IP firewall code, IP anti-counterfeiting, IP quality of service control and many security features. These features are comparable to those of high-end routing devices provided by companies like Cisco. In addition, with the Samba group provided by RedhatLinux (which is not unique to RedHatLinux), Linux can be used as a print and file server for Windows clients, as well as a file and print server for NT. With the AppleTalk module included in Linux, Linux can even act as a file and print server for a Macintosh client. Let Apache, the most widely used Web server software system in the world, run on linux, and you can run your own Intranet or Internetweb server. Linux also includes a Ftp service, an e-mail transfer agent, and POP and IMAP mail services. If you like, you can also get a free Linux LDAP service on Internet. In the face of such a powerful network function, we strongly suggest that people who are interested in building a network should master the second weapon of Linux-networking ability.

III. Innovative ability

"if you always use Microsoft's development tools, you can only be an operator all your life." That's true at all. Linux is free software, and the difference between free software and non-free software is:

1. Free software is open, and thousands of people can check it and quickly find and modify its error code.

two。 End users can customize their own free software according to their wishes, and users with special needs can customize their own Linux completely in the way they see fit.

3. In order to prevent reinvention, free software saves a lot of work by sharing source code and ideas.

Are these features attractive to good people with ideas? Not only that, because of its own advantages, Linux is also used more and more widely. For example, the application of embedded Linux is very popular recently, which has been widely used in all kinds of communication basic products, including notebook computers, networking devices, network TV and so on, while embedded operating system is increasingly becoming an irresistible popular trend. Eventually computers, communications and home appliances will become one because of its existence. These also provide a broader space for good people with ideas to play. Today, when dreams are power, it is unthinkable without the ability of innovation. Therefore, it is strongly recommended that those who have a strong spirit of research and like to get to the bottom of things learn to use Linux and make use of the third weapon provided by Linux-the ability of innovation.

IV. UNIX capability

Another important reason why people choose Linux is its UNIX compatibility. Because Linux is a set of free software, users can get it and its source code for free, get a large number of applicable programs for free, and modify and supplement them at will. This is very useful for users to learn and understand the kernel of the UNIX operating system. It can be said that Linux provides a cheap opportunity for users to learn and use the UNIX operating system at home.

With the support of many CD-ROM vendors and software companies for the Linux operating system, Linux has become a substitute for UNIX systems on personal computers. At the user level, Linux is very similar to UNIX, so if you know UNIX, you can understand most of Linux; at the programming level, most applications can switch between Linux and UNIX with little work. And Linux is also intentionally designed to be compatible with UNIX, making it easy to use the body of UNIX software. Linux interoperates well with other UNIX machines, using standard UNIX services such as RPC (remote procedure call) and NFS (Network File system). Linux also inherits the flexibility and customizability of UNIX, making it suitable for a wide range of applications, including traditional server and desktop applications, as well as unusual applications such as embedded systems.

Therefore, if a user programs on the UNIX system while working in the company, or is a UNIX system administrator at work, he can install a UNIX compatible system, the Linux system, at home. You can accomplish some work tasks by using Linux at home. The purpose of eager to master Linux through UNIX learning must be needless to say. In this era when network talents are doubly valuable because of scarcity, people who want to rely on technology for a living but do not want to master server-side technology are real fools.

5. Nostalgic ability

In this era of IT technology is changing with each passing day, nostalgia should not be a good habit, although nostalgia can have a very good feeling. 5  can treat ⑾ with bad looks, dust change,  leech, , overseas Chinese, gadfly, love, , lazy forgiveness, "acenaphthene manufacturers all cry that their products can effectively reduce our TCO (total cost of ownership). But the depreciation rate of the equipment in hand is still accelerating. If you listen to me, I will say that there is never a savior in this world, so try my recommended Linux.

Linux is very small and can make efficient use of hardware. The minimum installation of Linux requires only 4MB memory, and you can also install Linux on your 486 machine and use it as a firewall or Web server. The Linux masterpiece I read even recorded that someone used 386 to build routers and firewalls. The Linux kernel allows hardware drivers to be loaded and unloaded at run time. In this way, you can maximize the use of memory because you don't have to load all the drivers. In a word, Linux can rejuvenate the old machine and save our financial resources. Therefore, it is strongly recommended that computer owners who run Windows as slow as snails learn Linux.

VI. Stability

Machines running Linux can run for months at a time. Linux provides complete memory protection, with each process running in its own virtual address space without damaging the address space used by other processes or kernels. Tasks and the kernel are also isolated from each other, that is, poorly behaved or poorly written programs can only destroy themselves. As a result, it is almost impossible for the broken process to crash the system. Linux has the upper hand over Windows98 and NT in the security contest, but what about Windows2000? Senior system security analysts pointed out that Windows2000 is not well prepared for network systems and server connections, and Linux is still the most secure operating system at present. Senior system security analysts also expect that Windows2000 will not complete testing and deworming until the end of this year. At present, the more secure operating systems are still commercial versions of UNIX and Linux. Senior system security analysts affirm that in the next five years, Linux will become the most secure operating system. By 2005, it will be very easy to manage and use Linux.

At this point, the study of "what are the six functions of the Linux operating system" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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