Background processing and Priority processing

Background processing noun - The execution of low priority programs while higher priority programs are not using the processing system.

Priority processing and background processing are semantically related. In some cases you can use "Priority processing" instead a noun phrase "Background processing".

Priority processing noun - Data processing in which the operations performed are determined by a system of priorities.

Background processing and priority processing are semantically related. Sometimes you can replace phrase "Background processing" with "Priority processing", this phrases are similar.