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Typical flow of the synchronous blocking I/O modelBicycleMemory, which can be divided into two types: one is called random, which is responsible for temporarily storing data waiting for CPU processing, and the data will be lost after power failure. It has no memory function. If the CPU is compared to the carriage of a train, RAM is the platform, and the people who go up and down the train are the data waiting to be processed and can only stay on the platform temporarily. The other is called read-only device, which can only read but not write, and its contents will not be lost after power failure. We will not introduce all the other equipment in the host computer here. In short, they all perform their respective duties to make the computer run normally, thus making the computer a good helper in our work and life.Test:我的珍宝是由帕斯卡尔·布迪亚尔导演的，让·雷诺主演的一部法式轻松喜剧幽默电影。钟隐道：没想到关中之地竟然给了章邯他们，那个刘邦成了汉王。如此说来，成皋的请还真是不妙。