the command prompt.
The command line interface allows you to interact with a computer using text-based commands or instructions. The earliest computers did not have graphical interfaces, so this was the only way to launch programs, perform file operations, and navigate the computer.
Graphical user interface (GUI)
A computer's graphical user interface can be controlled with a mouse or trackpad.
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This is usually refered to as a Human Interface Device (HID), or just an "input device."
Interface
the operating system
dbms
A graphical user interface (GUI) is a type of user interface item that allows people to interact with programs in more ways than typing.
CLI is a type of computer interface that allows users to issue commands to a computer by typing using a keyboard. CLI means command line interface.
interface
user interface