CAV, revolution speed of a hard disk that does not change according to the location of data on the disk (as opposed to CLV in which the speed is faster on the inner tracks)
CLV, flow of data at a constant speed (caused by a change in the speed of revolution of the hard disk according to the location of data - faster on the inner tracks and slower on the outer tracks)
A universal joint used especially in front-wheel drive cars that allows power to be transmitted from a transaxle to an axle or from an axle to a wheel even at sharp angles, as when the suspension moves up and down. Also called CV joint
(Otomotiv) Found mostly in front-wheel-drive cars, and on some rear-wheel-drive cars with independent rear suspension systems, these special joints transmit engine power while allowing full steering and suspension movement. They are covered by black accordion boots that protect joints and hold grease