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大规模集成电路技术业已将中央处理机的成本降低到这样一个水平,即以前避免应用多处理机以满足系统性能要求的概念,如今又成为一种吸引人的可行方案。这种方法有几个优点。除了增强系统的性能(吞吐能力),提高可靠性和实时响应外,还可实现积木式系统的扩充能力。尽管设计这类采用微处理机部件的系统缺乏经验,这是一项复杂工作,弄得不好会影响系统的有效操作,可是第二代单板计算机诸如英特尔公司的SBa 80/05和80/20的问世,已使多处理机的微型计算机系统成为现用产品。
LSI technology has reduced the cost of a central processing unit to such an extent that the concept of avoiding the application of multiprocessors to meet system performance requirements has now become an attractive option. This method has several advantages. In addition to enhancing system performance (throughput), increasing reliability and real-time response, building blocks can also be expanded. Although the design of such systems with microprocessor components is inexperienced, which is a complex task that can not be done properly to affect the efficient operation of the system, second-generation single-board computers such as Intel’s SBa 80/05 and 80 / 20 advent of the multi-processor microcomputer system has become a current product.