Computer Network review, computer network review materials
During the interview, if the interviewer wants to examine how your computer network has learned, how can he ask about the TCP three-way handshake process?
So, I started to review the computer network in October April 24. I had to review the
Network basics of basic computer series-network protocols and basic computer networks
What's the network protocol
A computer with hardware, operating systems, and software already has functions that can be used. However, to realize communication between a computer and a computer
(I didn't find a Chinese tutorial on Gargoyle Router QoS. Therefore, based on my immature understanding of QoS, I would like to share my experience as follows: mistakes and omissions are inevitable, so don't laugh)
In a 4 MB downstream, kb upstream ADSL dial-up Internet environment, a G300Nv2 router with G301N Gargoyle firmware is installed, intranet computer A performs P2P (THUNDER download, BT download, P2SP movie, online movie), and Intranet
Recently, the unit has replaced several new computers, the installation was completed only to find that the computer can not be network. To this small series after groping, and finally successfully solved the problem, now share with you, hope to encounter the same problems of netizens can help. The following methods for the same network interface, the old computer to replace the new
The computer doesn't sound?
If you are enjoying the HD blockbuster, if you are fighting in the game, if you are in the voice call, face the computer does not sound you are helpless, do not worry! This paper will use the illustrated method to give a detailed solution.
Detailed steps to troubleshoot a computer without sound
The first step is to check if the
Sometimes we always encounter the computer suddenly shut down the problem, then we should deal with it.
1, first of all you have to check the computer carefully, to determine what causes the computer shutdown.
2, you can open the computer chassis, the dust in the case to clean up the case, the
Most of the causes of this problem on the computer card screen are explorer. We can try to end explorer in Task Manager and then restart it.
Open the task manager. If the mouse activity is still valid, right-click the blank area of the desktop taskbar and selectStart Task Manager". Collapse the image and expand the image. If the mouse operation does not respond, we can press"Ctrl + Alt + Delete", Call"Task Manager". Collapse the image and expand th
Registry method: "Start → run", type "Regedit" and then enter, then expand in Registry Editor [Hkey_current_ User\software\microsoft\windows\currentversion\explore Branch, delete the "stuckrects" primary key in the right window, and then restart the computer.
Desktop icons can not be displayed, and the right mouse button click on the Desktop no response!!
Access to the system in Safe mode indicates that the system has not been hit by a devastating
The specific methods are as follows:
1, right click on the Start menu, and then open the Control Panel;
2, click the "System and security" option;
3, then click on the "Security and maintenance" option;
4, click on the left "Change Windows SmartScreen Filter Settings";
5. Select the third item "Do not perform any action (turn off Windows SmartScreen filter)" and click OK.
Complete the previous steps to turn off Windows SmartScreen
Causes computer screen Flicker
1. Monitor adjust refresh frequency low
2. System Monitor Refresh rate Low
3. Monitor and host connection loose
4. Magnetic field Interference
Windows XP System Solutions
Method One: Enable monitor auto Adjust function
1. Look at the next to your monitor has a Aoto key, press the Aotu button to let the monitor automatically adjust the refresh frequency:
Scenario Two: Adjust the System Monitor refresh frequency
Method One
1. Open Task Manager
On the keyboard we also press "Alt+ctrl+del" into the System Task Manager
2. Look at "apps"
Then we look at the task Manager to see how many tasks are in the program.
3. After clicking the "Process" tab, figure
We'll see how many processes the system has and those processes that take up CPU and memory.
4. Close the Unused program
Right-click the mouse--end process
5. Do not know the procedure, you can directly Baidu.
Right-click the mouse--en
First, open Task Manager
Here with Windows XP system as an example, we press "Alt+ctrl+del" will enter the background of the Computer Management backstage, where you can see all the running processes in the system.
Second, look at the "application"
Once we're in, we'll see the currently running application in the Application Management tab.
Third, click "Process"
In the Processes tab we see a lot of. exe files running, and here's a look at th
.
3. Click on the right side of the "sound".
4. In the play, see if speakers are the default device, as shown in the following figure:
5. If "Speaker" is not the default device, right-click "Speaker" and select "Set as Default Device".
6. Set the speaker to the default device and click OK below to see if the speaker has any sound.
Third, the sound card driver reinstall
: If you check the above settings are no problem, then you ne
① What computer memory is used for.
Because memory is faster than hard disk, when the CPU starts working, it writes some of the commonly used information to memory and reads it from memory instead of from the hard disk when it is used. This reading speed is obviously faster to read the hard drive, improve the efficiency, so get a memory is necessary!
② often see for example DDR2 800 and DDR3 1333 what these represent
DDR2 refers to 2 generation of
1. We can start by pressing del or F8 into the computer BIOS, and then in the open BIOS interface with the next key to move to the "Advanced" selection box, will be "Fast BIOS Mode" and then we select "Disabled" as shown in the following figure.
2. OK, set up, we press the "F10" Save exit, you will find the BIOS to identify the U disk.
Note: Well, this phase is set up in fact, is the setting of the third boot to USB on it
Vivo x9 the correct connection to the computer tutorial:
First, in the Vivo X9 system main interface to find and in turn into " settings "-" More Settings ", click to enter.
Second, then enter the "About mobile" page, below it to find "version information", click to enter.
Third, the next in the version information interface, 7 consecutive clicks "" software version number"" Can activate the developer option.Four, finally go back to the "More S
Windows has protected your computer from shutdown Tutorial:
1, download a small game, the operation prompts the following figure
Although you can still run after clicking "More Info", you still feel trouble
2, open the Control Panel, view the way-"Select Small Icon-" select "Operation Center"
3. Select "Change Windows SmartScreen Filter Settings"
4, select the third item "not intimate any action (turn off Windows SmartScreen Filter)"
5,
First, verify the headset equipment is normal
: If there is a problem with the headset, then there will be no sound when the headset is plugged into the notebook.
Verification Method:method One:Look for sound when you plug the headset device into another computer or mobile device. If the headset is plugged into another device and there is no sound, it should be a fault for the headset itself, which basically eliminates the problem with the laptop.Me
The first step: in turn into the settings → application → development, check the USB debugging (into the USB debugging depending on the phone brush rom different and different, part of the ROM in the settings → developer options)
The second step: the mobile phone with a data cable to connect with the computer, and open Tencent mobile phone butler or 91 mobile phone assistant and other mobile management software, software will automatically download
First, the display refresh rate setting is correct
Check the method is: in our computer desktop blank area right---properties--settings-Advanced---Monitor the following figure:
You can see that the display's refresh rate is set to "60 Hz", which is why the monitor screen is constantly shaking. Set the new frequency to "75" and then click OK to return to the desktop. There is only 60 hertz in the notebook, so there is no need to adjust the value,
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