Foot
A foot may refer to any of the following:
1. A foot is a length measurement that equals 12 inches or 0.3048 meters.
Use "foot" when referring to a single unit of measurement and "feet" when referring to multiple units.
2. Also called a base, the term foot describes the part or parts of external hardware components designed to sit upon a flat surface. Examples are on the bottom of a computer chassis or the bottom part of the stand on external flat-panel displays. The area covered by a foot is often called a footprint.
3. When describing a human, the foot is the lowest extremity found below the ankle on the leg. With computers, the foot can be used as an input device. For example, those who cannot use their arms may use a foot mouse instead of a hand mouse.