Why is the first indicator light of the computer keyboard on, I love to ask knowledgeable people

The first indicator of the computer keyboard is the numlock indicator, that is, the numeric keypad indicator. The NomLock indicator light is on to indicate that the numeric keypad has been turned on, and you can directly press the keypad to enter numbers.

num is an abbreviation for numeric. lock means lock. Numlock means to lock numbers.

Lock Unlock keypad) If you cancel the numlock key on the keypad, then the numbers on the keypad cannot be used. When the numlock key light is on, you can use the numbers on the keypad, but if it is off, you can't use it.

Isn't it an unm lock light? That means that your keypad numeric mode is turned on, that is, when you press the keypad on the right side of the keyboard, it shows numbers such as 1234 (the content above the keycaps), and if the unm lock light is west, it means that the keypad on the right side of the keyboard is displayed up and down, left and right (the function below the keycaps), similar to the effect of the main keyboard holding down shift.

You can also press the numlock key without lighting up. Lighting up means your keypad is ready to use.

It's the screen scroll lock key, just turn off the scroll lock key.

Numeric key area lock, light means on, no light is disabled....num that key.

This is the switch for your keyboard's keypad.

The keyboard light needs hardware support, generally by pressing the [Scratch FN] key in the lower left corner, and it can be turned on by pressing a key in the [Number Keys] above the keyboard. Here's a closer look:

1. The keyboard light needs the support of hard cherry blossom sliders;

2. You can press the [FN] key in the lower left corner of the keyboard, and it can be turned on with a key in the [number key] above the keyboard.

3. Some Lenovo computers are [FN] + [Space Bar], ASUS computers are [FN] + [F4] for brightening, [FN] + [F3] for dimming, and HP's is [FN] + [F5] on. For the specific buttons of other brands, you can check the introduction above the manual;

4. In addition to using shortcut keys, you can also check whether there is a relevant setting center of the computer brand in the status bar in the lower right corner, click to open to find the relevant settings of the keyboard, in addition to turning on the keyboard light, there are also some models that support the color of the LED keyboard light.

Extended Materials. A keyboard is a kind of instruction and data input device used to operate the equipment, and also refers to a set of function keys (such as typewriters, computer keyboards) that are arranged to operate a machine or equipment by the system. The keyboard is also part of the musical instruments that make up the keyboard, and it can also refer to the instrument that uses the keyboard, such as the piano, digital piano, or electronic keyboard, etc., and the keyboard helps to practice typing.

The keyboard is the most commonly used and the most important input device, through which you can input English letters, numbers, punctuation marks, etc. into the calculation of Chun Song parallel machine, so as to issue commands to the computer, input data, etc. There are also keyboards with various shortcuts, but at first they were mostly used in branded machines, and were once seen as a feature of branded machines. Over time, there have been separate products on the market with various shortcut functions**, with dedicated driver and configuration software, which can also be used individually on compatible machines.

There are three small indicators in the upper right corner of the desktop computer keystroke, respectively, the corresponding keys are numlock, capslock, scrolllock, these three keys, press it to turn on, the indicator light is on, and then press it to turn off, the indicator light is off, and the specific role of each button is:

1. The "numlock" key represents the numeric keypad, which is located on the top of the numeric key 7, which is generally turned on by default when the computer is turned on, and the number can be entered directly from the numeric keypad when the light is on, if it is not lit, then the number of the numeric keypad is not reacted to.

2. "Capslock" is an uppercase lock key, located on top of the shift key, which is generally turned off by default, when the light is on, it means uppercase locking, and the key is the uppercase letter, if there is no light, it is to enter lowercase letters or Chinese characters.

3, scrolllock" is the scroll key, the position is the second key on the right side of F12, the default is off, generally will not be used, if the indicator light is on, it means that the scroll key is turned on, when you press the upper and lower keys to scroll on excel, etc., the cursor will be locked and the page will be scrolled, and after it is closed, the cursor will be moved when the upper and lower keys are pressed and the page will not scroll.

1. The meaning of the first light is generally the "numlock" key that represents the numeric keypad key. Generally, it lights up automatically when the computer is turned on. When this light is on, if you need to enter the number, you can enter it directly from the numeric keypad.

If the light is not on, then pressing the number keys of the numeric keypad will not respond. This key is generally above the number key 7.

2. I believe that the second lamp knows a little common sense about computers. It's a letter case toggle key, and it's a caps lock

That is, the meaning of capitalized locking. This key is to the left of the letter A. That is, the top of the sub shift.

Press and hold the key to light up the second light. At the same time, when you enter the letters, it is a capital letter. If it's not lit, it's lowercase.

3. The last light is the third light, which many users don't know very well. The general use is not very large. Then the way to turn on and off the indicator is the "scrolllock" key, which is sometimes referred to as scroll.

If the light is lit, it means that the scroll key lock is turned on, and when you press the upper and lower keys to scroll in excel and so on, the cursor will be locked and the page will be scrolled; If you let go of this key, pressing the up and down keys scrolls the cursor instead of scrolling the page. But basically, you don't need it, you just need to solve it. Brother Liquid.

First of all, the keyboard is fine, and secondly, if there is no buzzer on the main unit, it may only be that the power cord of the monitor is loose, or the connection between the main unit and the monitor is loose.

Hell hehe, okay, just kidding, my family used to have such a situation, generally the motherboard burned or the graphics card problem, it is recommended to go to the place where the computer is repaired, there is no way to do it after a long time, that day my computer also appeared like you, the result is that the graphics card is smoking, the keyboard and mouse or something is no problem.

It should be a hardware issue.

Are there any other alarm sounds? If not, you can consider motherboards, hard disks, etc.

There is too little descriptive information to judge the specific problem.

It can be judged by the detection card or the hardware replacement method. A certain degree of professionalism is required.

Try a different keyboard, if other keyboards are good, then make sure it's a keyboard problem, if it's not an interface problem, in addition, it's possible that it's a virus, if not, you may have to reinstall the system.

Remember to kill often.

The most common problems that the computer does not respond when it is turned on are: the power cord of the computer host is not properly connected, the monitor switch is not turned on, and the power supply of the monitor or the data cable of the monitor is not in good contact.

When we find that the computer does not respond when we turn on the computer, we need to first observe whether the power indicator of the computer is on after the computer presses the boot button, when the power indicator is not on, then it is likely that there is a problem with the power supply, you can check whether the power cord of the host is connected to the external power supply well, whether there is a line failure, etc., when the computer power supply is bad, the computer will not respond when the power supply is bad, these need to do some simple elimination to confirm. When the computer indicator light is on, the CPU fan inside the computer is running normally, then generally speaking, it can be preliminarily judged that there is no big problem with the power supply, and then we will check the monitor to see if the power indicator of the display is on, and whether the display data cable is well connected. At the same time, observe whether the computer keyboard and mouse indicators are on, generally if there is no problem with the host, the computer keyboard indicators and mouse indicators are normally on, this situation often appears on the monitor, such as the display switch is not turned on, the monitor data cable is not connected, or the display power supply is faulty.

In this case, shut down and reinsert the keyboard and wait for the computer to recognize, you can use it, right-click on my computer to manage the device, right-click on the manager to see if the mouse and keyboard driver are available, if there is a question mark, you need to re-update the driver, or directly uninstall the driver**.

The computer keyboard is a channel that inputs the control information of text information into the computer, which evolved from the English typewriter keyboard. When it first appeared on computers, it was a component called a "teletypewriter".

It may be that the interface between your computer motherboard and the keyboard is not in good contact It is recommended to try a new socket, I hope it can be done.

At present, the conventional keyboard has three lights, and some special keyboards have four lights, and the method of turning off is as follows:

The first one is a tube keypad, there is a small numeric keypad area on the keypad, press numlock to lock, the first light of the keypad indicator is on, it indicates that the numeric keys in the keypad are available.

The second is case switching, press the capslock case toggle key, you can activate the second indicator, the light is uppercase, the light is offcase is lowercase, when playing a large number of uppercase letters, it is very practical.

The third press the scroll lock key to activate the third indicator to turn off, if you use the page turn key (such as page up and page down) when scroll lock is off, the selected area of the cell will move accordingly; Conversely, if you want to scroll without changing the selected cells, just press scroll lock. (In Excel, press the direction cursor key, the cursor will enter other cells; After pressing the scrolllock key, press the direction cursor key, and the screen moves but the cursor does not go, which is used to browse without moving the cell where the cursor is located.