| − | The '''transistor''' was invented at Bell Labs in Murray Hill, [[New Jersey]], by scientists William Shockley, Walter Brattain, and John Bardeen from the University of Minnesota. | + | The '''transistor''' is a device used to switch electrical signals on and off, or to amplify them (make them larger). It was invented at Bell Labs in Murray Hill, [[New Jersey]], by scientists William Shockley, Walter Brattain, and John Bardeen from the University of Minnesota. |