Overhead may be: * Overhead (business), the ongoing operating costs of running a business * Engineering overhead, ancillary design features required by a component of a device ** Overhead (computing), ancillary computation required by an algorithm or program ** Protocol overhead, additional bandwidth used by a communications protocol ** Line code or encoding overhead, additional bandwidth required for physical line transmission * Overhead information, for telecommunication systems * File system overhead, storage or other consideration required by a

file system In computing, file system or filesystem (often abbreviated to fs) is a method and data structure that the operating system uses to control how data is stored and retrieved. Without a file system, data placed in a storage medium would be one larg ...

that is not directly related to data. * Any physical object situated, or action occurring above: ** Overhead line, for power transmission ** Overhead cable, for signal transmission ** Overhead projector, a display system * Overhead cam, a mechanical device * Overhead join, in air traffic control

See also