Learn in the textbookFundamentals of Processing Types and System Configuration
DefinitionParallel processing (並列処理) splits a series of tasks into units that can run at the same time, assigns them to multiple CPUs, and executes them simultaneously to shorten processing time.
ExplanationIt can be done with several CPUs in one computer or shared across several computers. The less the parts have to wait for each other's results, the more time is saved.
AnalogyStuffing a pile of envelopes goes faster when several people work on it at once than when one person does them one by one.