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List of contents of this article:

• 1,International trade knowledge base Apple computer Mac system startup USB disk production and use tutorial picture and text detailed explanation
• 2, Da Trend to LAN Sharing File Management System All-round Edition Installation and Use Tutorial
• 3. Reinstall System Tutorial on Computer
• 4, How to use the full-screen viewing function of the Win10 system photo viewer
• 5. Linux monitoring system usage tutorial with sar command

Apple computer Mac system startup USB disk production and use tutorial picture and text Detailed explanation

Insert the USB flash drive to start up, long press the "option" key to enter the boot interface, and select the yellow "Mac OS X" to boot the system for installation. After inserting the boot USB flash drive, press the option key for the boot time. Enter the startup item interface. Select the yellow hard disk icon, Mac OS X, and click the up arrow to enter the next step.

After the startup USB disk is completed, the disk symbol of the USB disk has changed from the original "1" to "Mac OS X Install ESD".Next, you can use this USB flash drive to start and install the Lion system. Insert the USB flash drive to start up, long press the "option" key to enter the boot interface, and select the yellow "Mac OS X" to boot the system for installation.

Step 1: Download Mac OS X Lion DMG to make a Mac system installation disk, you first need to download a Mac system installation dmg file. The current system version is 3. Here is a download link of 115, which has been verified to be available. I also installed the USB flash drive made with this file.

Boot Camp can help you install Microsoft Windows on your Mac. After installation, please restart your Mac to switch between OS X and Windows.

Dashi to LAN shared file management system all-round version installation and use tutorial

Baidu download Dashi to shared file management system, unzip to find SharedFileMo Install nitor_V1exe. After the installation is completed, you can see this on the desktop! Open it (press ALT+F3 is also acceptable).

First, run LANProtector.exe, install the main program, and click the next step directly until it is completed; then run winpcap.exe, install the packet grabbing program, and also go directly to the next step; if there is a dongle, you need to install the dongle driver (trial version No need to install).

Baidu is the LAN shared file management system. After the download is completed, unzip it, find the Installation package SharedFileMonitor_Vexe, and double-click to install it in the shared file server.

Reinstalling System Tutorial on Computer

1. Computer Use LightThe operation steps for reinstalling the system are as follows: prepare the system CD. Prepare the system CD: If not, you can buy it in the computer store.

2. Download the attachment and run it, and select mode 1 or 2 according to the old system environment (Tip: If you need to uninstall the Nt6 hdd Installer startup menu after finally installing multiple systems, it is best to uninstall it in the old system). After restarting and selecting Nt6 hdd Installer, it will automatically enter the installation interface and will not be described in detail.

3. When you start the installation disk, the computer will start from the installation disk and enter the operating system installation interface. Follow the prompts of the installation wizard to complete the installation of the operating system. During the installation process, you may need to enter the product key, select the installation path, etc.

4. The USB disk installation system tutorial is very simple. First, connect the USB disk with startup function to the computer.After starting the computer, you will be asked to enter the password of the boot USB disk, which is the password set before when making this boot USB disk. When you enter the correct password, you will see a selection menu and select "WinPE By: MAOTAO".

How to use the full-screen viewing function of Win10 system photo viewer

You need to start the drawing of the Windows system in your own win10 computer Tools, if you don't know where this drawing tool is, I suggest you use Xiaona's voice assistant to search directly.

First, we need to use the registry editor to open Win10 system photos.Viewer function, because in fact this function is hidden, then press the Windows logo key + R key, open the run command window, and enter the "regedit" command.

As shown in the figure, we select the file browser to open it on the computer taskbar, or press the Win E key combination on the keyboard to open it. Then enter the main page. Select the view option at the top of the homepage to open it. Then select the option in the upper right corner to open it. Then select to view and open under the pop-up window.

Tutorial for monitoring the system with the sar command in Linux

Note: Sar is a front-end display tool for the background process sadc, and the installation is called "sysstat" After packaging, sadc will automatically collect and save reports from the kernel.The following is a summary of the general usage of sar for reference.

rchar/s The characters transmitted by the system call of the read operation per second (in bytes). Wchar/s is the character (in bytes) transmitted by the system call of the write operation per second. * If scall/s is continuously greater than 300, it indicates that the application running in the system may be inefficient.

The sar command is a Linux system monitoring command that can view CPU utilization and other system performance indicators in real time. The sar command needs to install the sysstat toolkit.

You can also run the sar command for a long time and then import the output data into a file to collect data.

used: used - buffers-cached in the Mem row, the total amount of memory actually used free: the sum of unused buffers and cache and unallocated memory, which is the current actual available memory of the system. Sar can check the real-time operation of each hardware of the server through the sar command.