An interface provides control to the people who use it. It also provides access to the "media" of multimedia- the text, graphics, animation, audio and video- without attention to itself. User interface is a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system . The interface provided by the operating system was mainly classified into two types:
Text based Interface (or) Character User Interface (CUI) Ex: MS-DOS
Windows based Interface (or) Graphical User Interface (GUI) Ex: Windows
An interface between a user and a computer system that involves the use of a mouse-controlled screen cursor to select options from menus, make choices with buttons, start programs by clicking icons, etc.
The user interface is the area where the user and an application interact. Any tool or machine has a user interface that is designed according to the user's needs.
A user interface can be as simple as a set of buttons, like those on a telephone or video recorder. In the computer world, a user interface can include a keyboard, a pointing device, and the items that appear on a display screen. The user interface, then, is the ensemble of hardware and software that lets a user and a computer communicate.
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