***graphical user interface (GUI), a computer program that enables a person to communicate with a computer through the use of symbols, visual metaphors, and pointing devices. The GUI is now the standard computer interface, and its components have themselves become unmistakable cultural artifacts
***GUI means Graphical User Interface. It is the common user Interface that includes Graphical representation like buttons and icons, and communication can be performed by interacting with these icons rather than the usual text-based or command-based communication. A common example of a GUI is Microsoft operating systems.
***Interfaces that are graphical in nature are known either as Graphical User Interfaces (GUI) or WIMP interfaces (Windows, Icons, Menus and Pointer
These are:
Graphical User Interfaces (GUI)
Command Line Interfaces (CLI)
Form-based interfaces.
Menu-based interfaces.
Natural language interfaces.
