What is the third keyboard light used for? 20

caps lock toggles the case of English letters. The num lock right keypad is turned on. The Scroll Lock key first appeared on the 83 keyboard of IBM's PC XT model and the 84 keyboard of the AT interface, and now this key is not only found on the 101 keyboard of the PC, but also on the "enhanced" keyboard of the Mac.

This key was very useful in the DOS era, due to the display technology at that time, the screen was limited to 80 characters wide and 25 lines of text, and it was very convenient to use this key to scroll through the page when reading documents. With the development of technology, the role of the Scroll Lock key has become less and less useful in the Windows era, but it is still somewhat useful in Excel: if you use the page turn key (such as Page Up and Page Down) in the state of Scrolllock 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.

Lock the keyboard in the middle, and there are also some software that have some specific functions, such as making dynamic screenshots of videos in QQ and so on!

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Some users found that there are three indicators in the upper right corner of the keyboard, usually we use the English character area and the keypad area on the right when using the keyboard, and the 3 keys above the arrow keys you may never touch, so their operation is relatively unfamiliar, so how to turn off the third light of the keyboard?

This operation takes a Lenovo computer as an example, and the specific operation steps are as follows:

The 3 lights in the upper right corner of the keyboard from left to right are:

1. Numeric key keypad indicator, the on/off key is numbock;

2. The upper and lower case indicators, the on/off key is capslock;

3. Scroll lock key indicator, the on/off key is scrolllock.

Extended information: Keypad for quick entry of numbers, etc., with numbock keys, you can switch between cursor function and number function. In addition, notebooks now have keypads with numbers above and below the letters.

Through CapsLock, you can control the conversion of English case and case; Scrolllock (scroll lock key) is a function key on a computer keyboard, and with the development of technology, the Scrolllock key has been increasingly ignored after entering the Windows era. However, it is still very useful in Excel, when the user is in Excel, when pressing the up and down keys or using the page turn keys (such as pageup and pagedown) to scroll, the cursor will be locked and the page will be scrolled; If you let go of this key, pressing the up and down keys (or using page turn keys such as pageup and pagedown) will lock the page by scrolling the cursor.

This article is based on the Lenovo Tianyi 510Pro-14IMB brand and Windows 10 system.

The three lights of the keyboard are turned off by pressing the three keys of num lock, caps lock, and scroll lock respectively.

In the upper right corner of the keyboard, press the num lock key for the first light to turn off the mega bridge, press the caps lock key for the second light caps to turn it off, and press the scroll lock key for the third light to turn off the family state.

The role of the three lights in the upper right corner of the keyboard:

1. The num is called the numeric lock key, which can also be called the numeric control key, when the num indicator light is on, it means that the numeric keypad area can be used normally, and when the num indicator is off, it means that the numeric keypad area cannot be used normally.

2. CAPS is called the uppercase and lowercase letter conversion key, when the CAPS indicator light is on, it means that when the user hits 26 English letters, the output is uppercase English letters, that is, the input method is set to the English state, if the CAPS indicator is off, the output is lowercase English letters.

3. Scroll is called the scroll lock key, which is not commonly used in the process of daily use of the computer, but if you open some web pages, word, excel and other web pages or documents, you need to slide down the web page slowly, and you can press the scroll lock key at this time, the scroll indicator will be turned on, and the interface will automatically scroll the interface at a uniform speed, and press the scroll lock key again, it will be automatically closed. <>

Method to turn off the third light in the upper right corner of the keyboard:

1. Find the lock key directly on the keyboard, press it to close, and then see the keyboard light on the right go out.

2. Numeric keypad indicator, on/off key is. The keypad is used to quickly enter numbers, etc., and with the keys, it is possible to switch between the cursor function and the number function. In addition, laptops.

There is now a keypad with numbers above and below the letters.

3. Uppercase and lowercase indicator, the button is caps lock; Through CapsLock, you can control the conversion of English case and case;

4. Scroll the lock key indicator, and the switch key is locked. Lock (scroll lock key) The function key on the computer keyboard, with the development of technology, the lock key has been more and more neglected after entering the era.

However, it is still very useful in Excel. When the user is in Excel, when the user presses the up and down keys or uses the page turn keys to scroll (such as page up and page down), the cursor will be locked and the page will be scrolled; If you release this key, pressing the up and down keys (or using page turn keys such as page up and page down) will scroll the cursor and lock the page.

The third light above the keyboard is the scroll lock light.

If you want to enable this function, you can press the "Scroll Lock key", and the "Scroll Lock key" is usually located on the right side of F12.

After pressing this key, when you press the up and down keys to scroll in excel, etc., the cursor will be locked and the page will be scrolled; If you let go of this key, pressing the up and down keys will scroll the cursor and lock the page.

This function key originated in the DOS era, when the screen was displayed as characters, each screen could display 25 lines, each line had 80 characters, and the scroll lock key was used to scroll over long documents, just like many web pages are scrolled through by double-clicking the mouse for the convenience of visitors. But in the Windows era, the scroll lock key basically retired from the stage of history.

What are the three lights on the keyboard?

Lock key: We all know that when its light is displayed, the numbers on the keypad can be entered. Maybe we don't usually notice it, but in fact, there are four arrow keys and home, end, pgup, pgdn, del, and ins keys on the keypad.

When the indicator light is off, these keys indicate functions such as moving the cursor.

lock key: It is an uppercase lock key, when the indicator light is on, the letters typed on the keyboard are uppercase letters, and when the indicator light is off, the letters typed up are lowercase letters. We should pay attention to it when entering the password.

lock key: The "scroll lock key" key must be unknown to some people. Basically, we don't use this key when we use our computers.

In fact, in some specific programs such as Excel, when the login is off, we press the arrow key on the keyboard, and the cursor will move to the next cell. However, when the indicator light is on, pressing the arrow keys on the keyboard will lock the cursor and scroll the page.

The three indicators on the keyboard are not lit, which may be due to several reasons:

1.The keyboard is not connected: If the keyboard indicator light is not lit and cannot be typed, it may be that the interface between the keyboard and the host is not plugged in, we can plug the cable back in and restart the computer.

2.Broken keyboard: If the keyboard still can't be used after the above operations, it may be that the keyboard is broken.

3.The indicator light is broken: If the keyboard can be used, but the indicator light is not on, then we can leave it alone, it is very likely that the light is broken.