For some occasions, you might want to run two projectors by using one computer in the same time. In this case, you should know that some computers will allow you to simultaneously plug multiple projectors. This is because those computers especially desktops have two video graphics array connectors.
However, you might have computer that does not have the dual VGA connectors. For this condition, you should purchase a VGA splitter. This equipment will divide the signal to allow you playing the graphics through tow projectors that you have. With this way, you will find that the image that you will get is not as clear as that you want. But, you will find that the difference is barely noticeable if you only split it once. The followings brief description on how you can run two projectors with one computer.
Firstly, you should purchase a VGA splitter. This is the most first thing that you should do. You can buy this equipment in the electronics supply stores in your area. The price for this equipment is a about $10 to $20 or more.
Secondly, you should connect the VGA splitter that you have purchased to the VGA port in your computer. You will find that the port for VGA is generally blue and it has 15 holes for pins.
Thirdly, you should use split wires to connect the projectors. For this, you should use VGA cables that appropriate with your projectors. If the input of your projectors is also a VGA port, you can use a cable with a VGA plug on one side of the cable. But, you should use a plug for VGA with three prongs output if you use a component projector.
Fourthly, you should power on your projectors and your computer before calibrating the projectors. You will find that calibrating your projectors will depend on the specific projectors that you have, but you should set the input before running it through the computer that you use.