The differences and connections between Linux and Ubuntu

The following column Linux System Tutorial will introduce the differences and connections between Linux and Ubuntu. I hope it will be helpful to friends in need!

Linux and Ubuntu:

We often say Linux operating system and Ubuntu operating system. This is incorrect. Yes, strictly speaking, Linux is not an operating system, but a kernel that belongs to the operating system.

Since Linux is open source and free, programmers can change it according to their own interests and inspirations and combine it into the operating system they want;

Using Linux as the kernel There are many operating systems. We call this operating system a Linux distribution, or simply use Linux to collectively refer to operating systems with Linux as the kernel.

Linux and Unix

It is usually said that Linux is similar to Unix, but there is a big difference between the two

Unix manufacturers are basically the same Software and hardware are jointly developed, so the Unix system is not very versatile. It is mainly designed specifically for specialized hardware, so the performance and stability are extremely good; while Linux is indeed a universal system, and most of them are designed specifically for specialized hardware. Some manufacturers do not produce their own hardware (only a few manufacturers like redhat

do so, so they make a lot of money), so the biggest advantage of Linux is good compatibility, but this determines that the performance is impossible Take it to the extreme...

Commercially speaking, due to the above performance differences, two different business models have resulted. Unix software and hardware are sold together, and they are very expensive (except freebsd),

Linux only sells software, most of which are free (manufacturers like radhat who take the Unix path are still in the minority); therefore, Unix is ​​suitable for large enterprises, while Linux

is suitable for small and medium-sized enterprises and individuals

Linux and Ubuntu

Since Linux is open source free software, different people, different communities or companies can use the Linux kernel to "assemble" an operating system according to their own ideas. Ubuntu is a Linux distribution, which means that Ubuntu is an operating system with Linux as the kernel. So in fact, ubuntu and linux are not the same concept at all. If Linux refers to humans, then Ubuntu is just a person named Ubuntu.

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