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Generally, the pin spacing of dual in-line integrated circuits is 100mil. If there is a 12mil lead between the two pins, the pad is a circle with a diameter of 64mil or a square with a side length of 64mil (a safe spacing of 12mil), and so on.Through the configuration file my.cnf像瑞星这样的大型国企，往往它的任何一点风吹草动都会改变着一片人的命运，就在瑞星曾经的辉煌消失开始亏损的时候，那些成长在瑞星的人们的命运也发生了“改制”。Attackers use a large number of controlled hosts to send a large number of ICMP/IGMP messages to the target machine to carry out Flood attacks to consume the resources of the target."Then you mean, in the subsequent battle with the" killer bee ", you still rely on the guns in your hands? If so, what effective means do you have to persist in fighting?" I asked.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.How to operate it?