1. Backgrounding is an intermediate stage sometimes used in cattle production which begins after weaning and ends upon placement in a feedlot. Background feeding relies more heavily on forage (e.g., pasture, hay) in combination with grains to increase a calf’s weight by several hundred pounds and to build up immunity to diseases before it enters a feedlot. Some cattle operations specialize in backgrounding.2. The execution of low priority programs while higher priority programs are not using the processing system