1. The amount of energy, work, goods, or services produced by a machine, factory, company, or an individual in a period. 2. Computing: A result produced by a computer that is internal to the system (from one programme or process to another) or external to it (from a programme or process to an output device) but internal to an output device (modem, monitor, printer, etc.). 3. Contracting: The desired result from a project or contractor.