- The simultaneous execution of multiple computer operations by multiple CPUs in a single computer. Such processors are usually linked by high-speed channels.
- The simultaneous execution of multiple computer operations by a single computer, whether it utilizes multiple processors or another mechanism.
- The utilization of multiple computers to perform multiple operations simultaneously.
- An architecture utilized for multiprocessing (1), multiprocessing (2), or multiprocessing (3). Also called multiprocessing architecture.