These utilised synchronizers to match equipment speeds, allowing for for smoother shifts and less complicated driving. The mid-twentieth century saw the introduction of computerized transmissions.  A handbook transmission needs the motive force to manually select the gears[6] by running a equipment stick and clutch (which is often a foot pedal https://automobilegearbox39738.creacionblog.com/33958531/automobile-gearbox-an-overview