How to use the three keys (Prtscrsysrq,scrolllock,pausebreak) in the upper right corner of the keyboard

Just learned the keyboard in the upper right corner of the three keys (PRTSCRSYSRQ, ScrollLock, Pausebreak) The use of methods, to share with you.

Prtscrsysrq

(When you think there is a good picture on the screen, quickly press the PRINTSCREENSYSRQ key, this key is the same as the camera shutter (this key on the keyboard are, generally in the direction of the upper part of the key). Then you enter the drawing software press Carl+v (paste) on the OK)

ScrollLock

(The key appears on the IBM PC/XT model's 83 keyboard and the at interface's 84 keyboard, which is now not only on the PC's 101 keyboard, but also on the Mac's "enhanced" keyboard.) The key is very useful in DOS, because the display technology at that time limited the screen can display only 80 characters long 25 lines of text, when reading the document, use the key can easily roll the page. As technology develops, the ScrollLock key plays a smaller role in the Windows age, but it is useful in Excel: If you use the Flip button (such as PageUp and PageDown) when the ScrollLock is turned off, The cell selection will move with it, but if you want to scroll without changing the selected cell, just press ScrollLock.

Windows 98-compatible keyboard has more than three PCs designed for Windows98 power management, "power Management key: Poweroff, Sleep, Wakeup, users have a power management key, you can easily control the computer host", the computer host power, such as the shutdown, or enter the state of sleep, very convenient to save electricity. "Poweroff" can be directly shutdown state, "sleep" can enter the state of power, extend the life of the PC, "Wakeup" key to return to normal operation mode)

Pausebreak

Pause/break: You can abort the execution of certain programs, especially DOS programs. The contents of the self-test displayed by the DOS interface before entering the operating system, press Pausebreak, pause the information tumbling, and press any key to continue. Press Windows flag +pause/break under Windows to call out System properties.

Insert

In some modes, such as DOS input, the insertion method is used to enter letters between two letters. If the cover method is input, press Insert to insert the method, that is, the following letter is not replaced by the letter entered;

Home

The home key is: Move the cursor to the left end of the current line, starting the health;

PageUp

English meaning: Page up;

PageDown

English meaning: Page down;

Delete

Is the meaning of deletion;

End

It's the end of the file, which is similar to last.