1. General. Productivity of a process, machine, procedure or system over a period of time and is expressed as a figure of merit such as output per hour, cash turnover or shipped order numbers. 2. Computing. Measure of a system’s performance to send data through all of its components, measured in speed in gigahertz. 3. Data communications . Efficiency measure expressed as transfer of data rate. Used in transfer between computers. 4. Internet. Measure of the performance of a web server. 5. Manufacturing . Speed of processing measured by output over a period of time.