best operating system

Add a root user for the ubuntu operating system and a root user for the ubuntu Operating System 1: After a virtual machine is installed and the Ubuntu operating system is installed, you can log on to the

Operating system experiment and code (full), operating system experiment code Operating System is an extremely important professional course for computer-related majors, but many people do not know how to write the code during the

Solve_fork1 () {while (lock==1) {} cnt++; printf ("%d has entered the critical section \ n", Getpid ()); lock = 1; } void Solve_fork2 () {while (lock = = 0) {} cnt++; printf ("%d has entered the critical section \ n", Getpid ()); lock = 0; } The above is achieved mutex access is not wrong, but also problematic, first of all, he was busy to solve the problem, and secondly, he can solve two of the process of competition. Peterson SolutionThe result of the solution

Operating system --- learning notes 0, operating system --- learning notes Note: This document follows the "Netease cloud classroom"-Harbin Institute of Technology-instructor Li Zhijun's Open Class course. I would like to thank Mr. Li for his busy schedule to provide excellent teaching resources for the majority of stu

1. Concepts of operating system virtual machines Running the operating system on bare metal is called an operating system virtual machine. 2 processor state: core State, tube state, user State, Mutual Difference Core State: the S

This section first introduced the breakthrough boot sector only 512 bytes of the principle, and then introduced the FAT12 file system, finally through the experiment Load loader and give control to loader to achieve break through 512 bytes of bondage.512-byte limit exceeded The boot sector used in the preceding section is only 512 bytes. However, there are actually a lot of things that the operating

Literacy Tails Operating System (I), literacy tails Operating System What is Tails 1.1? Tails is short for "The Amnesic Incognito Live System. As a Linux release, Tails is derived from Debian (Debian is one of the most influential community releases ). Tails is designed to h

Running a virtual machine on Windows is a Linux operating system, how can you pass files between different operating systems?This is my personal firsthand, assuming you do not have a good method. It was very painful indeed. Here is a summary of my personal approach: method One. Very useful:* * * * Using a winscp software, it is an open-source g

Operating System Experiment Instruction book Computer College of Yantai University Operating System Course Group 2008-9-20 the first part of the operating system on the computer guidance Linux

Operating System-webpage storage management and operating system storage When talking about page-based storage management, I would like to talk about the user's program first, because page-based storage management serves the user's program or processes. After a program is compiled, it will definitely occupy space, that

Operating system notes (11) virtual memory, operating system virtual memory Virtual Memory Demand paging Page Replacement Algorithm FIFO first-in-first-out Optimal Replacement: the least used pages in the future. It is difficult to implement. LRU: least recently used. The above approxima

Linux operating system basics, linux operating system Basic Principles of Linux: 1. It is composed of a single small program with a single purpose; it is combined to complete complex tasks; 2. Everything is a file; 3. Avoid capturing user interfaces as much as possible; (Avoid interacting with users as much as possible

Review of Operating System Content and Operating System Content Thread: The thread is the execution unit in the process and the minimum unit for CPU allocation. Components: thread stack and Kernel Object The thread stack is the resource required to store threads. The kernel object is a private block in the

First, the experimental contentRewrite Bootsect.s and SETUP.S to complete the following main functions:1, BOOTSECT.S can print a message on the screen "XXX is booting ...", where xxx is the name you give your own operating system, such as Lzjos, Sunix, etc.2, Bootsect.s can complete setup.s loading, and jump to setup.s start address execution.3, SETUP.S is able to output a line of information like a screen

completion time of each job, the turnaround time and the turnaround time (turnover factor).2. Dynamic demonstration of each scheduling, update the current system time, in the running state and waiting for the corresponding information of each job (job name, arrival time, the desired run time, etc.) for the HRRN algorithm, can show each job response than R in each schedule.3. (*) allows users to submit new jobs during the impersonation process.4. (* *

wait I/O. Solving method L Exchange Technology: a part of the temporarily unable to run the process (blocking the process) to the external memory (only the program and data, the PCB does not change out), to make room for space, can invoke a new process to execute. • Virtual Storage technology: Each process can only load part of the program and data 4. Suspend: The process is exchanged to the external memory, the state becomes suspended state 4.1 Cause of Process suspend (P91) L Process all blo

Using C # To clear operating system logs is very simple, because. NET provides an EventLog class to encapsulate this complete function. Using(EventLogEl =NewEventLog() {El. log ="Application"; El. Clear ();} By default, the server has three log files: application, system, and security. ApplicationProgramAnd the Service uses the application log file. The device

My computer installed three systems, and one of them is not often used, so I want to uninstall it, online search, and finally found this uninstall operating system artifact--os-uninstaller. Os-uninstaller provides a graphical interface to clear windows, MacOS, Ubuntu, and other operating systems, is powerful and easy to use, the author through the practice, succ

1. Right mouse button desktop "Computer" icon, select "Properties". 2. The "View basic information about Computer" window opens to see the system version and system type of the computer, as shown in the following illustration: 3. You can also click the "Start" menu in the lower-left corner of the desktop and choose Control Panel. 4. Select "System" in Con

IntroductionProcess synchronization is an operating system level concept, in the context of multi-channel programs, there are different constraints, in order to coordinate this mutual restrictive relationship, the realization of resource sharing and process collaboration, so as to avoid conflicts between processes, the introduction of process synchronization.Critical ResourcesIn the