the function of a keyboard and mouse
The computer keyboard is used in conjunction with the mouse as the primary input device. numeric keypad, navigation and editing keys, directional keys, function keys, and the escape key (ESC). (ALT), and the Windows key ( ). The CTRL, ALT, and Windows keys are usually found on each end of the space bar.
A mouse typically controls the motion of a pointer in two dimensions in a graphical user interface (GUI). The mouse turns movements of the hand backward and forward, left and right into equivalent electronic signals that in turn are used to move the pointer.