Main Page | See live article | Alphabetical index In computing, a radio button is a graphical user interface element (widget) that indicates a multi-way choice which can be edited by the user. Radio buttons are arranged in groups of two or more and displayed on screen as a list of circular holes that can contain white space (for unselected) or a dot or (for selected). Adjacent to each radio button is normally shown a caption describing the choice that this radio button represents. When the user selects a radio button, any other radio button in the same group becomes deselected. Selecting a radio button is done by clicking the mouse on the button, or the caption, or by using a keyboard shortcut. It is possible that initially none of the radio buttons in a group are selected. This state can not be restored by interacting with the radio button widget (but it may be possible through other user interface elements). See also check box. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.