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一、CPU和存贮器如前所述,CPU是PC的核心,在PC控制器中起神经中枢的作用。每台PC至少有一个CPU,在一些按功能分散处理或根据容错技术而设计的PC中,可能包含多个CPU或多个微处理器。它们各尽其责,分别承担一定的功能控制,或按控制系统的可靠性等要求而冗余设置。随着新技术新器件的不断发展,CPU的选用及其构成原理也日新月异。根据不同的应用需要,
First, the CPU and memory As mentioned earlier, CPU is the core of the PC, the role of the nerve center in the PC controller. Each PC has at least one CPU and may include multiple CPUs or multiple microprocessors in some decentralized or fault tolerant PCs. They do their duty, respectively, to assume some functional control, or according to the reliability of the control system and other requirements of redundant settings. With the continuous development of new technology and new devices, the selection of CPU and the principle of its composition are also changing with each passing day. According to different application needs,