Introduction

Screensaver is a program that starts when a computer is idle for a long time. Its function is to protect the display screen and prevent the phenomenon of "screen burning" caused by staying on the same screen for a long time by displaying animations, images, and other forms when the computer is idle.

Screen saver programs first appeared in the late 1980s, when CRT monitors had a "burn out" problem, where staying on the same screen for a long time would cause the pixels on the monitor screen to be excessively activated, resulting in residual shadows and affecting the display effect. To address this issue, computer scientists have developed screen saver programs that display animations, images, and other forms of animation during prolonged idle periods, enabling even activation of pixels on the screen, thereby reducing the occurrence of "screen burning".

Screen saver programs typically include various forms of animation and images, such as scrolling text, graphics, slides, etc. Users can choose different screen saver programs according to their preferences. In addition to preventing screen burning, screen saver programs can also increase the fun of the computer and improve the user experience.

With the development of computer display technology, liquid crystal displays have gradually replaced CRT displays, and the importance of screen saver programs has gradually decreased. However, in certain special occasions, such as industries that require long-term operation such as finance and security, screen saver programs still have certain application value.