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.
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)
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.
A PC (computer), a PC projector and a screen.
Try the iTunes or Windows Media Player visualizers.
Cheap projector screens are usually made from plastic as this material is easily purchased and can also be made from recycled plastic which makes the material even cheaper for use in products such as a projector screen.