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This article through a demo, to explain how to obtain operating system related information through C #, such as memory size, CPU size, machine name, environment variables, such as operating system software, hardware-related information, only for learning to share the use, if there are deficiencies, please correct me.
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At present, a lot of new notebook factory is Win8 system, but most users in the use of computer process, always feel very unaccustomed, after all, has been used Win7 system, now suddenly changed a system, naturally not accustomed to. So how to change the WIN8 system back to the Win7
Write the operating system by yourself (1) and write the operating system by yourself
Taking the opportunity of taking the kernel course of the operating system now, I borrowed "write the oper
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. (* *
First, the operating system structure:1, operating system structure: process- can obtain CPU resources, memory- in order to allow more programs to run, external devices, security mechanisms, networks, etc. constitute the operating syst
3. Install the Operating System
1. installation is so simple
Here we use RAID (Automatic Installation of DVDs) for installation. Raid uses jumpstart for installation, which is equivalent to one-click restoration in windows. The entire installation process takes less than half an hour, and various drivers and useful software are pre-installed.At the beginning of installation, the
you have finished formatting, choose to install the system to C, and the boot partition is also C.
Double C
The invisible WIN8 installation process just started silently!
After 100%, Win$man will remind users to reboot the computer!
Remember to unplug the USB drive before restarting.
To this end, WIN8 installation is finished 99%, the remaining can do only wait, waiting for the computer to reboot, waiting for WIN8 automatic installation.
In
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
Operating System: management process understanding, operating system management process understanding
I recently started to read the operating system book (which is not in this direction). I still cannot fully understand it when I
Operating system summary, operating system knowledge points SummaryThe operating system is difficult. It's just that we think so when we see or hear others say it's hard. If you calm down and look at the books for two days, you wi
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
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
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
Lenovo, Asus, DELL,HP notebook computer If you do not recognize the local hard disk under the PE can be used in my following this method can be recognized by operation. Then install the computer on the system below.
1, now the new version of the BIOS of the notebook computer has a lot of closed the IDE mode, only ahci this, so there is no way to modify the BIOS to achieve under Win PE view to the hard drive. So this method is over.
2. Wh
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
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
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