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Memory, 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.　　枪林弹雨之中，随父母一起转移的留美归国少女丁芷寒，在地下党员祝中华的舍身相救之下侥幸逃脱。然而，她的父母却跟其他所有科学家一样难逃厄运，暴尸街头。她的救命恩人祝中华也因受伤被捕。多次行动的失败，使上海地下党认识到自己队伍中隐藏着一个叛徒，他就象一根毒刺般深刺在我地下党组织中。而且，这数次失败的行动都是由特别行动组组长祝中华负责，偏偏每次也只有他能够从敌人的包围圈中全身而退。时值深冬，冷风呼啸而过，在马路旁的一间新式面店内，一对男女，谦和小月分手了，没有呼天抢地的哭声，也没有你死我活的对骂声，就只是这样，平淡和平得像没事发生过一样结束了这段只维持了一年半的爱情！唐肃宗年间，因宫廷争斗，太子流落民间并改姓薛，名平贵。3. SingleTask--