Some questions about the Linux operating system 10

The software used by Linux is compiled and installed

What is Linux?

Linux is an open-source operating system (OS). It was conceived and designed by Linus Torvalds in 1991 as a hobby. Linus, who was still in college at the time, wanted to create a free and open source system based on Unix's principles and design, as a replacement for the Minix operating system.

Since then, this hobby has evolved into an operating system with the largest user base. Today, it is not only the most commonly used operating system on public internet servers, but also the only operating system used on the top 500 fastest supercomputers.

The biggest advantage of Linux is its open-source nature. Linux is an operating system released under the GNU General Public License (GPL). This means that anyone can run, research, share, and modify the software.

Modified ** can also be redistributed, or even, but must be based on the same license. This is in stark contrast to traditional operating systems such as UNIX and Windows, which are proprietary systems that are vendor-locked, delivered as-is, and cannot be modified.

Be. Linux is a common operating system that is a versatile, open-source operating system kernel and can run on a variety of computer hardware platforms.

Linux is the successor to UNIX, and Linux inherits many of the features of UNIX and adds some new features. Linux takes the open source route, free, anyone can make modifications, and then develop their own operating systems, such as the more well-known ones such as Debian, Ubuntu, Hongqi, etc. Similarly, Linux is mainly used on servers and is rarely used by ordinary users.

Common operating systems are Windows, Mac, and other operating systems, Linux is relatively out-of-the-way, generally programmers or computer learners, need to develop some programs to install Linux operating system, most of the computers on the market except Apple, are Windows system, is Microsoft's operating system.

Common computer operating systems are Windows operating system, Unix operating system, Linux operating system, and Apple operating system.

is a common server operating system.

It depends on what field it is, the general home computer rarely uses the Linux system, but the share of Linux on the commercial server side is probably the first, far exceeding the Windows Sever version.

It is a multi-user, multi-tasking, multi-threaded operating system.

The source of ** is public.

It is mainly published through the web.

The veteran with the brigade can be perfected, and the steady line hunger qualitatively exceeds any other operating system of the stool.

Correct answer: d

Answer] :(1) Linux is open source free software, while UNIX is a commercial software that implements intellectual property protection for the source**.

2) Unix is mostly tied to hardware, while Linux can run on a variety of hardware platforms.

3) The design idea of Linux operating system is derived from Unix, but it is better than Unix

Essentially, the operating system should be the kernel, because the main task of the operating system is to hide the details of the processing hardware, and this is implemented by the kernel.

So why isn't it complete? What is complete with the kernel?

This should be analyzed from the bottom up of the computer structure in the following order:

Hardware, drivers, kernels, user interface programs, applications.

The main thing is an interface program, what is it? Why do you need it?

If the user is allowed to interact directly with the operating system, it is very painful for the average user. User interface programs are developed to better interact with them.

User interface programs: text-based shells, icon-based graphical user interfaces (GUIs) such as GNOME and KDE.

Essentially, the user interface program is not supposed to be part of the operating system, but it does its work with the help of the kernel and is closely related to the operating system (kernel). Therefore, it is customary to say that "kernel + user interface program" is a complete operating system.

The kernel is the lowest level. Whereas, the Linux system is the kernel and some bound things. Alas, for those who don't know linux, I don't know how to explain it.

Personal understanding:

The Linux kernel is a variety of hardware that directly calls computers; Give commands and let the hardware execute them through commands;

But since the command we enter the Linux kernel is completely incomprehensible......Need an intermediary shell or other; Let our commands be translated through the shell to make the Linux kernel understand; Complete our instructions.

The shell and various other intermediaries translate our needs to the kernel; Complete the task ...... personal understandingIf there is an error, please point it out, thank you......