There are several ways in which a user or a program can interact with an operating system.
Here are three primary approaches:
Command-line interface (CLI):
A command-line interface allows the user to interact with the operating system by typing commands into a text-based terminal or console. The user types in a command, which is interpreted by the operating system, and the result is displayed in the terminal. CLI is a powerful and flexible way to interact with the operating system, but it requires a certain level of technical knowledge and can be less
intuitive for some users.
Graphical user interface (GUI):
A graphical user interface provides a visual way for the user to interact with the operating system. GUIs use windows, icons, menus, and other graphical elements to represent and control system resources. GUIs are generally more intuitive and user-friendly than CLI, but they may not be as flexible or powerful.
Application programming interface (API):
An application programming interface provides a set of functions and protocols that can be used by
programmers to interact with the operating system. APIs can be used to perform low-level operations,
such as system calls, or to access higher-level services, such as file management, process management,
or network communication. APIs are used by software developers to create applications that run on the
operating system, and