Radio Buttons and Check boxes are one of the most common type given to Input tags. These are mostly used in forms and other form related areas. Actually Radio buttons are graphical icons representing one of the set of items. Out of this set of items only one item can be selected at once.
On the other hand, Checkbox as shown in figure above are defined as a graphical control element, which allows users to make binary selections. This exactly means a choice between one of two possible mutually exclusive options. Checkboxes are often shown on the screen as a square box as shown in above image. These checkboxes are used to make multiple selections.