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This article mainly shows you "what is the difference between Linux and Ubuntu", the content is simple and easy to understand, organized clearly, I hope to help you solve doubts, let Xiaobian lead you to study and learn "what is the difference between Linux and Ubuntu" this article bar.

For those of you who don't know Linux, you might say,"I'm using Linux." In fact, the word Linux itself refers to the Linux kernel. Linux is an operating system based on the Linux kernel. Ubuntu is one of the operating systems with Linux as its kernel.

What are the parts of the linux kernel operating system? There are four main components: kernel, shell, file system and application. The kernel, shell, and file system together form the basic operating system structure that makes it easy for users to run applications, manage files, and use the entire system.

1. Linux applications

A good operating system provides a set of user-friendly applications, such as text editors, office suites, Internet tools, databases, etc.

2. Linux file system

A file system is a method of organizing files on storage devices such as disks. Such as EXT2, EXT3, FAT, FAT32, VFAT, etc.

3. Linux Shell

Shell is the user interface of the operating system, providing an interface for users to interact with the kernel, and is a command interpreter. It receives user input commands and sends them to the kernel for execution.

4. Linux kernel

The kernel is the core of the operating system. An operating system needs to perform tasks such as requesting memory resources, performing calculations, connecting to the network, etc. The Linux kernel handles all such requests, just like the human brain.

Functionally, the Linux kernel has five modular functions: process management, memory management, file system management, device control, and network management.

4.1 Process Management:

The Linux kernel is responsible for process creation and destruction, as well as communication between processes, and input and output of processes. Furthermore, process management controls the use of one or more CPU resources on Soc by multiple processes

4.2 memory management

Memory resource usage strategies are particularly important for operating system performance. The kernel creates a virtual address space for each process on limited memory resources. The different functional parts of the kernel interact with the memory management subsystem through a set of function calls, making communication efficient and simple.

4.3 file system management

In Linux, almost anything can be viewed as a file (everything is a file). The kernel makes extensive use of structures such as kobject to organize a bunch of unstructured hardware into a hierarchical data system. In addition, Linux supports multiple file system types. Ext4, etc.

4.4 device control

Almost any operating system ends up running on a physical platform. The kernel contains driver code that accesses hardware devices on the platform.

4.5 network function

Most network operations are not tied to specific processes because packet transmissions are asynchronous events. Before an application accesses a packet, the kernel performs tasks such as packet collection, identification, and distribution.

What is Ubuntu as an operating system?

At present, it seems that Ubuntu respects "free open source and personalization", has a very user-friendly bright interactive interface, strong software source support, most of the mainstream drivers can be found in the installation package; In addition, because Ubuntu is based on the debian series, there is a dpkg suite that can be installed online, has a perfect package management mechanism, good compatibility, many applications, and can download a lot of personalized gadgets. The personalized experience is great; Ubuntu is arguably the best PC operating system in Linux distributions.

Other Linux kernel based operating systems include Redhat and Centos. Redhat is the mainstream server-level version of Linux. Provide all kinds of professional technical support, provide large technical and product solutions. It has the only global Linux professional certification body. At present, many large servers in state-owned enterprises and large and medium-sized enterprises will choose Red Hat. Centos is basically no different from redhat. The advantage is that it is completely free, and the disadvantage is that it does not provide any technical support. Some standard server systems for SMEs are often used.

Whether it's Ubuntu or Redhat or even centos. The core is Linux. So whether it is a large enterprise or a small enterprise, you want to engage in operation and maintenance related work. The most basic thing is to fully master Linux technology.

That's all for "What's the difference between Linux and Ubuntu?" Thanks for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!

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