What is the meaning of Footprint?

The impression of the foot in a soft substance such as sand or snow.

Space required by a piece of equipment.

The amount of hard drive space required for a program.

The audit trail left by a crashed program.

A trace left behind that gives evidence of some action having occurred.

What a person has done before, as a profession or lifestyle, serving as a model for others.

The surface space occupied by a structure.

A company's geographic market presence.

The ecological impact of a human activity, machine, etc.

Availability of a satellite from the ground.

A polygon representing the shape of an item.

Source: wiktionary.org