If you used a green or red screen, whatever you are looking at being projected would be that colour. Like when you draw with colours you use white paper instead of coloured and when you do use coloured the colours you are drawing with do not show up as well as they would on white.
Doesn't it project things on a screen
Use methylated spirits
The VGA cable that you would use to connect a laptop to a projector screen is called a PS2 projector cable.
Marketing presentations are developed to advertise and sell products using multimedia. Sales representatives use a computer, a video projector, and a display screen to make their presentations to the audience.
This type of projector is used to enlarge digital images from many different sources on a large surface or screen.
No you dont need a screen, you could just use a wall
Connect the VGA monitor out on the PC to the VGA input on the projector. If your projector does not have a VGA or DVI input, the resolution of the projector is probably not high enough to adequately display the screen of a computer.
A church projector should use at least 2500 lumens and be of an appropriate screen size. This is important because you will want your church projector be very bright.
Display properties often include screen resolutions (ex. 400x300, 1600x900, 1920x1080, etc.), color (saturation, hue, gamma, brightness, contrast, etc.), the display you want to use (a desktop monitor, laptop screen, or an external display, such as a TV or projector, if you connect), and other options such as color depth (often 16-64 bit), display rotation (if you want everything to appear upside down), and refresh rate (measured in Hz)
A PC (computer), a PC projector and a screen.
Yes you can use a projector to display your computers output onto a projector, white wall/sheet. Keep in mind that a screen is designed to reflect much more light and color than you average white wall so the picture might not be as crisp as you want. Also keep in mind that the projector will have to have the correct input to match your computer output (VGA, HDMI, etc) or you have to have converters that will fit the inputs. Its a great way to play games, watch movies, office work, edit photos/videos, etc. You can find cheap projectors easy on eBay. Good luck Have Fun.
Try the iTunes or Windows Media Player visualizers.