Double-click on a computer

A double-click in simply a technique in which we make two clicks with the left mouse button in a very short delay (less than a second).

What can be confusing with double-click its that it is not always required, sometime only one click is enough to open of choose something on the screen. Most of time, double-click is necessary in a context where we can choose more than one elements at the same time ( see multiple selection with the mouse ), for instance with files and folders, email lists, etc.