Computers these days do not need a screen saver at all, the monitors and screens have developed since the start. Originally the screens used to be CRT green screens which displayed the characters and...
A few very bright lights, they need to be specific, ask in your local camera store. A computer with a program that can do Chroma Key Nothing else green, different tones of green can be OK, but that...
If you have a PC, you can go to the (paint) aplication on your start menu. You can there make a design or put a picture on the page. After you are completely done, Click the (File) icon, then click...