drive

drive [AS, drifan, to move forward] , 1. a basic, compelling urge. A primary drive is one that is innate and in close contact with physiological processes. A secondary drive is one that evolves during the process of growth and that incites and directs behavior. 2. an electromechanical device that holds a secondary storage medium and allows for the transfer of data to and from the computer, such as a disk drive or tape drive.