What is UI explain all three types of UI?

The various types of user interfaces include:

A user interface is the method by which the user and the computer exchange information and instructions. There are three main types – command-line, menu driven and graphical user interface (GUI) .

user interface – the keyboard, mouse, menus of a computer system . The user interface allows the user to communicate with the operating system. Also see GUI. software interface – the languages and codes that the applications use to communicate with each other and with the hardware.

There are five main types of user interface: