Two popular operating systems (OS) are:
Microsoft Windows:
Windows is one of the most widely used operating systems in the world, known for its user-friendly interface, compatibility with various software, and broad hardware support.
Linux:
Linux is an open-source operating system that is highly customizable and used in a wide range of computing devices, from servers to smartphones.
Conclusion:
Windows and Linux are two of the most popular and widely used operating systems globally, each with its strengths and specific use cases.