Who developed Unix, how is it developing now, how fast is the upgrade, and why is there Linux again

First back to xiaobai282

Services and software are two different things.

Ubuntu is one of the hottest Linux distributions now, advocating that it is completely free and completely free.

So Ubuntu is free for both the desktop and server versions.

But Ubuntu also has services, and Ubuntu's services are chargeable.

Whether or not there is a fee for software and whether there is a service or not and whether there is a charge for the service are completely different things

Back to lz, in fact, your problem itself is not valid.

1.It's not that companies use UNIX instead of Linux

Red Hat, SUSE, Red Flag, and enterprise Linux versions such as the aforementioned Ubuntu are also very popular.

2.It's not that Linux is free and Unix is charged.

The BSD series and OpenSolaris are well-known Unix derivatives.

OpenBSD is known as the most secure system in the world.

These Unix systems are open source and free.

Conversely, to say that Linux is open source and free just means the Linux kernel, not all Linux distributions.

Hongqi Linux Enterprise Edition, SUSE Linux Enterprise Edition, and RedHat Linux Enterprise Edition are all charged.

You can go to the Internet to check **, it's not cheap

There is a paid service, sometimes you won't, and someone else's service may save you money than hiring someone to maintain it.

Not all Linux is free, some Linux has important support for enterprise users, such as SUSE, Red Hat, etc., and this category is charged for enterprises.

Nowadays, there are many small and medium-sized enterprises, and even large enterprises will use Linux system as some server systems, but some enterprises will use UNIX as the server for this part of the data because some data is very important, or need more efficient management, or the server that needs to manage these data has strong stability and performance, while other relatively less important ones use other types of operating systems as server systems. This is not to say that Linux can't do it, but for more complex reasons.

There are 4 main reasons why Unix is a server system:

1.The supporting manufacturers of the UNIX system are all "big bull" companies, the service is relatively good, and of course, the system is also quite good;

2.Unix system manufacturers often not only produce servers, but also provide Unix systems, as well as after-sales services, including software and hardware; Their system and server work together to maximize performance, and customers are not willing to (usually) choose other systems, first, it is inconvenient, they don't know what the problem is or need more contact after the failure; Second, major manufacturers have marketing strategies, they convince customers that UNIX is as cheap as a giveaway, but in fact, these manufacturers' service support can also seek benefits for enterprises;

3.Traditional advantages. Linux came out relatively late, and its stability has not yet been proven (not to say unstable).

The Unix system is basically a system that is applied to the server itself, and the binding strategy adopted by those vendors has made most of the server systems used so far Unix. The server mentioned here is not a PC server, but a minicomputer, etc.

4.Finally, there is the issue of open source: software cannot be flawless, and open source software means that potential vulnerabilities (if they exist) can lead to security issues, because some people have bad intentions and will do bad things.

However, open source software has matured, and it turns out that Linux is growing.

1. In this way, there can be the manufacturer's guarantee and technical support.

2 is that the purchased server platform requires a dedicated UNIX

For example, IBM UNIX system, HP UNIX system, and so on.

linux, now the popular one,

The most popular distributions of Linux are Ubuntu and Fedora, Unix is charged, and the microcomputer is not used...

It is recommended to learn linux.

Unix can go to learn Scaunix or Solaris because these 2 systems can be installed on x86 computers.

Linux can go to Redhat Centos or OpenSuse, these are free, you can rethat first, is the more popular Linux system.

It is highly recommended to learn linux and it is very promising in the future ubuntu is biased towards the desktop I think you may focus on the service aspect when you learn linux! You can use the Red Hat Fedora version of CentOS

Linux is very representative of ubuntu, I don't know what you mean by foolish operation.

linux learn this, the current open source system is linux

Unix is the master of Linux, so you know, normal desktop Unix and Linux are not charged, their server version is charged, and it is very expensive, but they are worth the price.

It's a hard question to explain. I can only talk about it briefly.

In terms of blood, both BSD and Linux are branches of UNIX, and the Linux system and BSD were born from UNIX. Apple's Mac OS system is also a fork of Unix.

In terms of **, Unix is non-open source, while the other two are open source. Unix is commercial software and there is no free one, whereas Linux and BSD are both free and paid, but most of them are free. For example, Redhat itself is free, but its enterprise version is charged.

In terms of hardware, UNIX prefers the concept of "thin client" on hardware, that is, UNIX-based systems that some manufacturers customize specifically for their own hardware. Apple's Mac OS and IBM's AIX have a clear idea of this, even though they are not called UNIX. Linux and BSD, on the other hand, are common and can be installed on different hardware architectures.

In terms of ease of use, it is certain that Linux and BSD are easier to use, and there are many people who use them, and the configuration is also simple.

In any case, they all have the same ancestor, just by different names.