从供选择的答案中，选出应填入下面叙述中______内的最确切的解答。 MIMD systems can be classified into (1) oriented systems, high-availability systems and response-oriented systems. The goal of (1) oriented multiprocess is to obtain high (1) (2) minimal computing cost. The techniques employed by multiprocessor operating systems to achieve this goal take advantage of an inherent processing versus input/output balance in the workload to produce (3) and (4) loading ofsystem (5) ．