Programmer Think

What are the components of the operating system? Process management, storage management, device management, file management, program interface, user interface. Operating system page change method: FIFO/LRU/OPT Memory management of operating system Partition management Paging management Segmented management Segment page management Basi ...

Experiment 4 of operating system requests paging storage management Title Description: 1, Experimental purpose By writing the simulation program of paging storage management, deepen the understanding of paging storage management mode, be familiar with the conversion process from logical address to physical address, master the page scheduling a ...

Experiment 33 of operating system truth restoration experiment record: realizing system call wait and exit 1.wait, exit, orphan process, zombie process exit is called by the subprocess. On the surface, its function is to make the subprocess finish running and pass the return value to the kernel. In essence, the kernel recovers all resources o ...

Study HarmonyOS | Hongmeng to the end < domestic |Abroad > A hundred blog series This article is: v55.xx Hongmeng kernel source code analysis (relocation chapter) | external spokesman in line with international standards | 51 .c .h .o This article is a continuation of the following articles. It is suggested to read it first v54. ...

preface Happy new year. Welcome to the last experiment in this book. In depth understanding of computer system experiment 8: Proxy Lab download and official document machine translation, please see: https://blog.csdn.net/weixin_43362650/article/details/122770330 I think this document is very helpful to the whole experiment. Experimental tas ...

1, Experiment contents and requirements Priority law, rotation law Simplified assumptions 1) The process is computational (no I/O) 2) Process status: ready, running, finish 3) The CPU time required by the process is determined in time slicesAlgorithm description 1) Priority law - dynamic priority When the current running process runs out of ti ...

This paper aims to record the experimental report and implementation process of operating system course design pintos project1 at the end of this semester. The whole experiment refers to many articles and some codes. Some of them are the same as other articles. Please forgive me.Part I Project Overview1, Pintos introductionPintos is a simple op ...

There are three memory allocators in linux: boot memory allocator, partner allocator and slab allocator Partner distributor After the initialization of the system kernel, the page allocator is used to manage the physical pages. When the page allocator is a partner allocator, the partner allocator is characterized by simple and efficient algor ...

UNIX Basics reaction to a book or an article: This chapter is an introduction to Unix. The author summarizes the basic knowledge of Unix in concise language and feels that it is written clearly. UNIX architecture Strictly speaking, the operating system can be defined as a kind of software, which controls the computer hardware resourc ...

1. Get key code There is little difference between mouse and keyboard in code implementation, so we can imitate the other as long as we complete one of them. Because after pressing a key before, nothing else can be done. Modify init inthandler21 function in C #define PORT_KEYDAT 0x0060 / / the device number is specified by IBM. For detail ...