The operator could select one of two basic sounds by using a wrist bar.

Some manufacturers such as Takeuchi have switches that allow the operator to select which control configuration to use.

The operator can select the depth, positioning the receiver in exactly the same layer of water as the submarine.

In combat, the operators would select targets on a long-range search radar and then simply say "go" to attack them.

Operation was to be almost entirely automatic, with the operators simply selecting targets from the search radar's display and then pressing "fire".

The operator logs on to the domain, and selects the boot image to apply.

By clicking on one of the symbols or text, the operator is selecting the instruction that the symbol represents.

Using beam steering, the operators would select a 90 degree wide fan-shaped area to investigate.

The operator selected one button from each row.

The operator would select a gear, typically 3rd.