Operating systems • English Conversation Questions

What is an operating system and what does it do?
What are the different types of operating systems?
What are the advantages and disadvantages of open-source operating systems?
What is the most popular operating system and why?
What are the key features of a good operating system?
What is the role of an operating system in computer security?
What is virtualization and how does it relate to operating systems?
What is the future of operating systems?
What are the benefits and drawbacks of using a mobile operating system on a desktop computer?
What are some popular alternative operating systems?
How has the development of operating systems changed over time?