Operating system summary

Operating system summary

Every time the teacher asks us to take the test, we should read the book again to learn it. We have been learning for a while before, but we have not yet achieved any real gains. This time, I strictly follow the requirements and urge myself to develop good habits.

This time I spent an hour reading a book, but I felt very rewarding. Let's take a look at the overall feelings after the examination. After the examination, I suddenly felt that the world was bright (here it was a bit exaggerated) and I was able to put it down. After reading the book again, I feel that this knowledge has become simple. It may be that after so many days of study, I have accumulated a certain amount of experience, and I have been strengthened after the exam, I can understand it after review.

I have made another conclusion for this book. Although it may be a bit cool, it is helpful to myself.

I. Introduction

Hardware --> operating system --> various operating systems (batch processing, time-sharing, real-time --> network, distributed, embedded --> now popular)

2. processor management

Iii. Storage Management

Objective: to manage the buckets in a user Zone

Single-user continuity-fixed partitions-variable partitions-page-based virtual

Now it seems that it is not that difficult. before the test, I felt that page-based storage management was a hard stone. I thought I would not give up, but fortunately I persisted with the help of the group. You can also despise it now.

Iv. File Management

In the end, the most important purpose is to facilitate user operations on files.

Organize files -- storage location (storage medium) -- allocate space -- directory -- protect files

5. device management

Objective: To manage heavier devices, such as printers

Device category-specific (disk scheduling)-channel-buffer technology-Virtual Devices (offline peripheral devices, Spring System)

Summary:

After review, I feel much simpler. Although I still have some concerns about my exam scores, I am glad that I have gained a lot in the course of my study. How can I manage my study and life in the face of various things, how to face the pressure. Of course, I also learned from the knowledge. After review, I felt that there were many similarities with our life, but I didn't think of it at the time. I still needed to do more exercises.