Recently, in order to cope with elevation exams, there are many lessons in the counseling class, and there are a lot of harvest. Now I wrote some parts I have never heard before, and everyone watched not to laugh:
Win2000 game compatibility is not good because the operating system enhances the control of hardware resources. It is necessary to strengthen security must be done, not the Win2000 design problem.
The network is also a device for the operating system, so there is no network as a separate piece of the network in the principle of operating system.
The PV operation is only lifted in the process schedule, and there are no other places. This gives a misunderstanding that PV is used in the management process schedule. In fact, this kind of operation is almost every place, but it is not yet been raised. As long as the place uses exclusive resources. For example, when generating a new process, the system process table has only one, so the operation of the process table must also perform PV operation.
The origin of the UNIX name: previously developed excessive mode operating system failed, the system called Multics, and then one of the project group came back to sum up the cause of failure, start developing UNIX, Multi is more meaning, so few words It is Uni, CS pronuncies to [KS], and X's pronunciation is also [KS], split is UNIX
Win98 is not a multi-tasking system in the true sense, because his process is actively exiting, not a preemptive
Disk fragmentation name is very mis perspective, with memory fragmentation is not a code. The file is stored in the cluster, only inner fragments, and it is impossible to be fragmented. The inner fragment is where the file is ended. The space cannot be used in this block, this space is not possible to be used by organizing. The so-called debris refers to a smaller file block. The sorting is just a whole. Self-study software engineering must have such awareness, the usual software engineering is a long time ago, the main content is very scientific, but there is also a small part of the meal, so I can't believe in it. comment. But you can't learn the latest software engineering theory, you can't understand it. The most important body part is still before. This is like protein and vitamins for one person, of course, is the most important protein because it is the main part, but this is indeed that most people cannot recognize. It is indispensable to not be equal to important, this is two concepts. The role of data structures in development is very large. But this idea should not be extremely extreme, and there are many people with this idea, especially the students who have just come out from the school. In fact, there are many logic of data structures, and there are invisible developers' brain, even if you have not learned. It seems that people who have not dedicated to learning logic can't say that there is no logic ability. People who have not learned Deng Xiaoping theory are not necessarily supported by socialism. This truth is the same, but this misleading is there. And this misleading is very common, such as writing in the principle of Marxism: Only learn Marxism principle can establish the correct outlook on life. According to this speech, the principle of Marx is before, no one has the right life concept. It can only be said that it can be systematically chemical after learning a certain theory.
