What are the common operating systems?

1, Microsoft Windows

Microsoft Windows operating system is a set of operating systems developed by Microsoft Corporation in the United States, which came out in 1985. Windows uses a graphical mode GUI, more humane than the former DOS need to type commands to use.

2, Linux

Linux is a free-to-use and freely distributed Unix-like operating system, a multi-user, multi-tasking, multi-threaded and multi-CPU operating system based on POSIX and UNIX. It runs major UNIX utilities, applications, and network protocols.

3, Android

Android is a free and open source Linux-based operating system. It is primarily used in mobile devices, such as smartphones and tablets, and is led and developed by Google and the Open Handset Alliance.

4, iOS

iOS is a mobile operating system developed by Apple Inc. First announced at Macworld on January 9, 2007, the system was originally designed for the iPhone, and has since been applied to the iPod touch, iPad, and Apple TV.

5, Mac OS

Mac OS is an operating system that runs on Apple's Macintosh family of computers.Mac OS was the first commercially successful graphical user interface operating system. The latest version of the system currently available is macOS 10.14.4 , and there are also Mac systems available online that run on PCs, referred to as Mac PCs.

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Mac OS

Mac OS is a suite of operating systems running on Apple's Macintosh family of computers. MacOS