An operating system should provide 3 main responsibilities to their users. Highlight these responsibilities and give a brief explanation of each.

Resource Management: The operating system is responsible for managing the system's resources. This includes the computer's hardware, such as the CPU, memory, disk drives, printers, and other peripherals. The operating system must allocate these resources efficiently to ensure the smooth operation of the system. For example, it must ensure that each application has enough CPU time to run properly, and that memory is allocated and deallocated as needed.

User Interface: The operating system provides a user interface that allows users to interact with the computer. This can be a graphical user interface (GUI), like the ones found in Windows or macOS, or a command-line interface (CLI), like the ones found in Unix or Linux. The user interface allows users to start and stop applications, manage files, and perform other tasks.

Security: The operating system is responsible for the security of the system. This includes protecting the system from viruses and other malicious software, ensuring that unauthorized users cannot access the system, and protecting user data. The operating system must also provide a way for users to set permissions for files and applications, to control who can access and modify them.