Overhead

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 that is not directly related to data. For example, in tape data storage, the separator between one file and the next is overhead.
 * Any physical object situated, or action occurring above:
 * Overhead line, for power transmission
 * Overhead cable, for signal transmission
 * Overhead projector, a display system
 * Overhead storage, for example overhead storage bins, racks, shelves, cabinets or track systems in aircraft, trains or buildings
 * Overhead cam, a mechanical device
 * Overhead join, in air traffic control
 * Overhead press, an upper-body weight training exercise in
 * Overhead crane or bridge crane, a type of crane sliding on two parallel rails