Several commonly used operating systems:

1. DOS operating system

DOS is the abbreviation of Disk Operation System in English, and disk operating system in Chinese. Version 1.0 was launched in 1981 and has been upgraded to version 6.22. The DOS interface uses character commands to operate and can only run a single task.

2. Windows 9x

Windows 9x is a multi-tasking operating system with a window-based graphical interface, which makes up for the shortcomings of DOS. Compared with Windows 9x, Windows ME (2000) and Windows XP (2001) launched subsequently focused on adding and enhancing functions such as network interconnection, digital media, entertainment components, hardware plug-and-play, and system restore.

3. Windows 98

is a version for mass users. Since it was developed from DOS, after installing and running large-scale software, the system will become unstable. Often crashes.

4. Windows

5. Windows NT/ Windows 2000

Windows NT is a network operating system. It provides comprehensive services in application, management, performance, intranet/Internet services, communication and network integration services. It has many advantages that other operating systems cannot match. Therefore, it is commonly used in demanding business desktops, workstations, and network servers.

Windows 2000 is built on the basis of the Windows NT kernel and absorbs the advantages of Windows 9x. Therefore, Windows 2000 is easier to use and manage, more reliable, faster to execute, more stable and More secure, more complete network functions, better entertainment effects.

The most commonly used Windows servers are Windows 2003 and Windows 2008, both of which are used by many large and small enterprises.

6. ?UNIX

The design of the UNIX operating system started with minicomputers. From the beginning, it was a multi-user, multi-tasking general-purpose operating system, which provided users with An interactive and flexible operation interface supports data sharing between users, provides numerous integrated tools to improve user work efficiency, and can be ported to different hardware platforms.

The reliability and stability of the UNIX operating system are unmatched by other systems, and it is recognized as the best Internet server operating system. In a sense, almost the entire Internet backbone is built on numerous machines and network devices running UNIX.

7. Linux

To be precise, Linux should be an operating system that complies with UNIX specifications. Linix is ??developed based on source code. Linux is a UNIX-like operating system that is free to use and freely disseminated. This system is designed and implemented by thousands of programmers around the world.

Users can obtain it and its source code without paying any fees, and can make necessary modifications to it according to their own needs, use it free of charge, and continue to spread it without restriction.

Linux is known for its efficiency and flexibility. It can realize all UNIX features on PC computers and has multi-tasking and multi-user capabilities. It also includes application software such as text editors and high-level language compilers.

It also includes the X-Windows graphical user interface with multiple window managers, just like we use Windows NT, allowing us to operate the system using windows, icons and menus. It is a powerful, performant, stable and reliable operating system.

8. Other operating systems

For example: Mac OS is a dedicated operating system for Apple Macintosh machines. In essence, Mac OS is also a variant of UNIX.