Even in brief about
1) radio button
2)command buttons and
3)checkbox
Answers
Answer:
radio button...
A radio button or option button is a graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options. The singular property of a radio button makes it distinct from a checkbox, which allows more than one (or no) item to be selected and for the unselected state to be restored.
Radio buttons are arranged in groups of two or more and displayed on screen as, for example, a list of circular holes that can contain white space (for unselected) or a dot (for selected). Each radio button is normally accompanied by a label describing the choice that the radio button represents.
command buttons and......
◦The action is to navigate to another page, window, or Help topic. Exception: Wizard navigation uses Back and Next command buttons.
◦The command is embedded in a body of text.
◦The command is secondary in nature. That is, it does not relate to the primary purpose of the window. In this case, either a lightweight command button or link would be appropriate.
checkbox.........
Check boxes are shown as when unchecked, or when checked. A caption describing the meaning of the checkbox is normally shown adjacent to the checkbox. Inverting the state of a checkbox is done by clicking the mouse on the box, or the caption, or by using a keyboard shortcut, such as the space bar.
Often, a series of checkboxes are presented, each with a binary choice between two options. Then the user may select several of the choices. Compare this to a radio button, in which only a single option is selectable from several mutually-exclusive choices.
A radio button or option button is a graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options. The singular property of a radio button makes it distinct from a checkbox, which allows more than one (or no) item to be selected and for the unselected state to be restored.
A command button is a clickable image object used with graphical operating systems. For example, in Microsoft Windows, when clicking the close button (the X in the top-right of the window), Windows closes that open window.
A checkbox (check box, tickbox, tick box) is a GUI widget that permits the user to make a binary choice, i.e. a choice between one of two possible mutually exclusive options. For example, the user may have to answer 'yes' (checked) or 'no' (not checked) on a simple yes/no question.
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