In the gearbox, the distinction lies between manual and automatic cars.
You shift gears as you speed up, slow down, plan to brake, stop abruptly or change direction while you drive a manual vehicle.
Depending on the vehicle you drive, there are normally 5 gears plus the reverse gear. You will move as you increase your pace. You’ll move down as you decrease your rpm.
There are always gears for the automatic engine, but the configuration is much easier. You have D (drive), P (park), N (neutral) and R (reverse), instead of making neutral, reverse, first, second, third, fourth and fifth gears.