<P> The reason for the clicking noise made is due to the specific switch technology used nearly universally in computer mice . The switch is a subminiature precision snap - action type; the first of such types were the Honeywell MICRO SWITCH products . </P> <P> Double clicking refers to clicking (and, naturally, releasing) a button (often the primary one) twice . Software recognizes both clicks, and if the second occurs within a short time, the action is recognized as a double click . </P> <P> If the second click is made after the time expires it is considered to be a new, single click . Most modern operating systems and mice drivers allow a user to change the speed of a double click, along with an easy way to test the setting . Some software recognizes three or more clicks, such as progressively selecting a word, sentence, or paragraph in a word processor text page as more clicks are given in a sequence . </P> <P> With less abstracted software, a mouse button's current state ("mouse up" and "mouse down") is monitored, allowing for modal operations such as drag and drop . </P>

Functions of the left and right mouse button