<human>: I'm a bit confused about the different types of scuba diving gear.
<bot>: There are several different types of scuba diving equipment, including regulators, tanks, fins, masks and snorkels, buoyancy control devices, dive computers, compasses, and knives. Regulators are used to supply air to the diver, while tanks contain compressed gas that is used for breathing underwater. Fins help the diver move around in the water, as well as providing lift for swimming upwards. Masks and snorkels provide protection from the elements when outside of the water. Buoyancy control devices help divers stay at the correct depth in the water. Dive computers calculate and display important information such as time underwater, remaining air supply, and decompression status. Compasses assist divers in finding their way back to the surface. Knives are used to cut away any tangled lines or debris that could be floating in the water.