The "PrtScn" key, short for "Print Screen," is a function key found on most computer keyboards. When pressed, it captures an image of the current screen display and saves it to the clipboard. Users can then paste this image into applications like Microsoft Word or Paint for editing or saving. In addition to the standard function, many operating systems offer variations of the "PrtScn" command. For example, pressing Alt + "PrtScn" captures only the active window, while Windows + "PrtScn" saves the screenshot directly to the Pictures folder. This makes it easy to share or store screen content.