Dictionary.com
Thesaurus.com

background processing

British  

noun

  1. computing the ability of a system to perform a low-priority task while, at the same time, dealing with a main application

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For third party apps, Apple is enabling Apple Pay, background processing for fitness apps, native control for the crown, APIs for speaker control, video, and more.

From The Verge

It’ll also sport a secondary processor dedicated to “background processing,” which Sony hyped by referencing the ability to start playing a digitally delivered game before it’s done downloading.

From Time