(n.) A computer system made up of many identifiable processing units working together in parallel. The term is often used synonymously with concurrent computer to include both multiprocessor and multicomputer. The term concurrent generally dominates in usage in the USA, whereas the term parallel is the more widely used in Europe.
A computer that uses several processors connected in parallel (Working concurrently). Software written for parallel computers can increase the amount of work done in a specific amount of time by dividing a computing task among several simultaneously functioning processors.
A computer having multiple CPUs.