Instead GUI's rely on the icons for display and mouse for interaction. A mouse is also known generically as an input device or pointing device . This is called highlighting . Note that some mice have a single button, others have two, some have three. In a Windows environment, the single button and the left button of the other mice perform the same function.
Mice can also move icons around the screen, or move text around in a document.
This behavior is called drag and drop . For example, to copy a file in a GUI, you do not issue any commands in text form. The computer understands that disks and files, too, have different properties . This language may sound stilted, but practice describing simple computer commands and behaviors as if you were speaking to another human being. Versions of Windows vary tremendously.