Notice how the output also depends directly on the input.

The output depends on the battery's volume relative to its discharge rate.

Its output depends on the difference between these two inputs.

The beam angle and light output required depend on the objectives of the dive.

The average output from a Pelamis machine will depend on the wave resource in a particular area.

A filter whose output depends only on future inputs is anti-causal.

The photo cell's output depends on the amount of light it receives through the atmosphere.

A system is causal if the output depends only on present and past, but not future inputs.

The output that results depends on how well structured the situation is to make use of such standard units.

However, the best output for one firm depends on the outputs of others.