Now we have more and more digital devices, but in fact there may be only a few that are commonly used every day, and the others will be idle. So is there any way to make these idle devices also use their waste heat? The answer is yes. Deskreen is a very practical program that can turn any device into a secondary screen for your computer. That device only needs to be connected to the LAN, have a screen and a web browser (so it can be a computer, tablet, smart phone, smart TV, etc.).