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Independently, Douglas Engelbart at the Stanford Research Institute invented the first mouse prototype in 1963,with the assistance
of his colleague Bill English.
PS/2IBM PERSONAL SYSTEM/2
USBUNIVERSAL SERIAL BUS
MOUSE ACTIONSMouse Action What to Do
Point Position the mouse pointer over an item or area.
Click Press and release the LEFT mouse button.
Right-click Press and release the RIGHT mouse button.
Double-click Perform Click two times in rapid succession.
Drag Press the LEFT button and move the mouse to the desired location.
Right-drag Use the RIGHT button in dragging.
Drag-and-Drop Perform Drag then release the button.