Shulou(Shulou.com)06/03 Report--

Today, I came across a problem that I don't like. I don't like it, but it still needs to be solved. In fact, this is a POS machine, in the rush hour, suddenly restarted for no reason, I check the configuration of the computer, solid-state hard disk, 4G memory, what is the problem? In fact, I do not know, because there is no error or failure, you do not know where to put the fork?

On the first day, I suspected the problem of the power supply. I changed the power supply and found that the problem had not been solved.

The next day, I went to replace a memory stick, and after replacing it, I found that there was a problem, and the computer could be started when it was booted. Because the wireless network card had to be used, the scan box of the wireless network card and the printed ones were all connected. The computer can also start normally. In order to solve the problem of the wireless network card, the plug-in board can not be automatically typed twice, and then restart it. Found the following phenomenon between computers, waited for 15 seconds to 20 seconds to appear the following interface, and then has been the following false death state

We all know that my heart is irritable, such a simple question unexpectedly stopped me, next I began to re-plug the memory, and then turned on, found that it can be started normally, the wireless network card still did not hit, but did not find that you can use the wired network, really silly, was trapped to death, a single mind is really terrible, well, I restarted again, found that the phenomenon of fake death as shown above.

I am really convinced, normal boot unexpectedly like this, I think there is something wrong with the hard disk, founder basically may have a problem, that is, the hard disk, memory, CPU, and the motherboard, there are no other problems. I can only blame the hard disk. I can only blame the hard drive. I unplug the hard drive and find that there is no problem. I began to pull out the wireless network card and found that it was normal as soon as I took it off. You said that this made me too big. However, we finally found out the root cause of the problem, then connected the cable to solve the wireless network card driver, and then rebooted and found that there was no problem.

It is very painful to find a single-minded person. In order to find out the root cause of the problem, we will continue to look tomorrow to see if there is a reboot phenomenon for no reason during the peak period. People must do things to the end and cure the problem thoroughly. Although there is nothing good for me, it is not a bad thing, it doesn't matter. It is a blessing for good people to do good deeds and good deeds to the end. Just looking at the present, playing tricks and tricks, I really can't play. I can't waste all my time on this. What I need now is to accumulate money, I am very direct, and then do what I like to do. It's so simple.

The following is a picture drawn by my understanding. Generally speaking, the connection established by a service is four times of recruitment and three times of waving. Here is the connection established four times. The process is to request, then respond to the confirmation, and then the server sends a request. Then after the client reconfirms, the request for a complete service is established. In fact, the principle is very complicated. The analysis of such things is really quite big, so let's make a simple explanation like this.

The process of running a computer

Boot-> CPU---- > memory-> hard disk-> boot boot-> init---- > windows boot interface (win7 interface)

CPU is like the human brain. What I want to do, I directly issue commands to memory, then memory reads the data in the hard disk, and then executes the commands issued by CPU through memory. We see programs running, such as playing music, playing videos, browsing the web, all running in memory, and the stored data is in the hard disk. When you need to use it, you call the data in the hard disk through memory, and then run in memory. This series of processes are very complicated, just like the human brain controls its own hands and feet. If you want to run, your legs will move immediately. So understanding computers is equivalent to treating computers like human beings. After all, computers are designed through human ideas and must have human thinking logic.

Just a brief introduction, too complex and profound things, I also need to take the time to sort out the generalist to be able to tell, such as the computer software and hardware failures, although I can solve 70% to 80%, but a lot of problems are still groping on their own. Baidu, how to put it? New problems can only be solved by themselves, and those solved by others, of course, do not need to think. Copy directly ok, but I still encourage innovation, solve problems on my own, and rely less on external things.

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