Urgency What is the reason why three lights on the keyboard flash at the same time and the keyboard

What should I do if the three lights on the keyboard are on and out of order?

1. To check whether the interface of the keyboard is connected to the computer, if not, please plug it in.

2. Then you should consider whether it is a problem with the keyboard, whether it has been flooded, and check whether the keyboard cable is damaged. If your keyboard is a wireless keyboard, then you have to see if the keyboard is dead. Or a keyboard launcher.

Whether it is in the wrong place.

3. If the keyboard itself is not damaged and the connection is normal, consider whether the driver has been deleted by mistake.

Because the keyboard drivers come with the operating system, it is easy to restore the driver after it is deleted. Open Device Manager.

Find the keyboard option. In the keyboard properties, there is a button to update the driver, you can click this button to update it and give it a try, if it is indeed because of the driver problem, the problem should be solved after clicking.

4. There are many possibilities for the computer keyboard socket to be broken. It may be that the interface is burned or that there is a problem with the interface driver. Causing the keyboard to be plugged in and not responding.

Solution: Try to change to another keyboard first, if it can't be used, it can mean that it is a problem with the computer interface. Then it's time to change the interface.

5. It may also be caused by the computer being poisoned, it is recommended to press and hold the F8 key to enter the safe mode when the computer is turned on.

Then use antivirus software.

Check and kill the computer, which may fix the malfunction.

Behind the Mpemba phenomenon, a cup of cold water and a cup of hot water are placed in the freezer compartment of the refrigerator at the same time, which glass of water freezes first? "Of course the cold water froze first! "I believe that many people will not hesitate to do this.

Unfortunately, this answer is wrong. The mistake was discovered by Mpemba, a junior high school student at Magamba Middle School in Tanzania, Africa. One day in 1963, Mpemba found that the hot milk he kept in the freezer of his refrigerator froze before the cold milk of his classmates.

This puzzled him, so he immediately ran to the teacher and asked for advice. The teacher said easily, "You must be mistaken, Mpamba."

Unconvinced, Mpemba tried again, but the hot milk froze before the cold milk. One day, Dr. Osborn, Head of the Department of Physics at the University of Dar es Salaam, visited Mpemba's school. Mpemba mustered up the courage to ask the doctor his question.

Dr. Osborn said, "I can't ask you questions right away, but I promise to do this experiment myself as soon as I get back to Dar es Salaam." As a result, the doctor's experiment was exactly what Mpemba said.

As a result, this phenomenon is known as the "Mpemba phenomenon". For more than 40 years, the "Mpemba phenomenon" has been recognized as truth to this day. It doesn't end there.

In 2004, Yu Shunxi, a girl from Xiangming Middle School in Shanghai, questioned this phenomenon. Under the guidance of Huang Zengxin, a famous science and technology teacher, Yu Shunxi and two other female students began to study the Mpemba phenomenon. They use sugar, water, milk, starch, ice cream and other ingredients to collect.

1. The three indicator lights on the keyboard are fully lit, indicating that the three function keys of Caps Lock, Num Lock, and Scroll Lock are enabled.

2. Caps Lock: Caps Lock is an English case conversion switch, when pressing this button, the indicator light will light up, and at this time the input English will appear in the form of uppercase, the light will go off after pressing again, and all the typed English will also return to lowercase, because it is often necessary to convert the case when typing, this is also one of the three shortcut keys commonly used.

3. Num Lock: The function of this light is more of the key we need to use when we enter some passwords, and the number keys in the keypad area can smoothly output the corresponding numbers when pressing and lighting up the indicator light. It is mainly responsible for the opening of the numeric keys of the numpad.

4. Scroll lock: Compared with the last two buttons, the role of this light is much smaller, and we only use this button when we carry out **. When doing Excel, the user uses the arrow keys to scroll, and the cursor will move with the page, and when the scrolllock key is pressed to move again, the page scrolls as usual, and the cursor stays in place.

The keyboard light keeps flashing for the following reasons:

1. Keyboard problem: If there is a problem with the internal chip of the keyboard, the solution is to replace the keyboard;

2. Socket problem: If the socket is damaged, the contact is poor or the power supply is insufficient, the keyboard light will be flashing all the time, and the solution is to repair the pure local socket or reduce the socket power supply.

to solve the problem of insufficient power supply;

3. System drive problem: It is not a problem of the boring system, it is the incompatibility of the driver of the human input device, and the solution is to try to replace the driver.

Take Dell G5,Win10 system as an example,Each function of the keyboard indicator is different,The indicator light is on means that the relevant functions are on,The three indicators on the keyboard are numlock、Capslock、The control keys of the three functions of scrolllock,Numlock is mainly responsible for the opening of the numeric keys of the keypad,Capslock is an English case conversion switch,Scrolllock refers to the cursor control key,All light up means that the function can be used, If you don't need to use it, you need to click the corresponding button to turn it off.

capslock is an English case conversion switch,When you press this button, the indicator light will light up,And at this time, the input English will appear in the form of uppercase,The light will go off after pressing again,And all typed English will also return to lowercase,Because you often need to convert case when typing,This is also one of the three shortcut keys commonly used。

The function of numlock is more of a key needed to enter some passwords, and the number keys in the keypad area can smoothly output the corresponding numbers when pressing and lighting up the indicator light. It is mainly responsible for the opening of the number keys of the keyboard of the little blind friend.

Scrolllock uses this key when grinding envy**. When doing excel**, use the arrow keys to scroll, the cursor will move with the page, and when you press the scrolllock key to move again, the page scrolls as usual, and the cursor stays in place.

This answer applies to most models of Dell computers.