FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -It allows the user to interact with devices through graphical icons and visual indicators such as secondary notations. The term was created in the 1970s to distinguish graphical interfaces from text-based ones, such as command-line interfaces. However, today nearly all digital interfaces are GUIs.

Detailed explanation-2: -In addition, users can interact directly with the operating system through a user interface, such as a command-line interface (CLI) or a graphical UI (GUI).

Detailed explanation-3: -A command-line interface (CLI) is a text-based user interface (UI) used to run programs, manage computer files and interact with the computer. Command-line interfaces are also called command-line user interfaces, console user interfaces and character user interfaces.

Detailed explanation-4: -The Application Layer enables the user, whether human or software, to access the network. It provides user interfaces and support for services such as e-mail, shared database management and other types of distributed information services.