How to add multiple monitors
I currently have 3 monitors and I planned on pluggin in a TV as well on my computer at home.
There There are 3 options for extra monitors
The best route is to get multiple video cards that are PCI express interface. You have to make sure your motherboard can handle the upgrade, some can, some can't. Mine does, with 3 PCI express slots. i put in 2 video cards that have 2 output jacks on each and I have room for a third. Look in your manual at your specifications. Or look online at what they look like, pop the side off and look inside. When buying your video cards make sure you look at the size, some of them can get pretty big with heatsinks and fans. Here is a decent one after a quick search
The second best route is to get video cards that plug into your PCI interfaces. Again you have to check if your Motherboard has these but 99% have at least 2 slots for additional cards. Often times you will see sound cards, or network cards plugged into these slots.
Here is a card that is made for multiple monitors on a work station
The third route would be to get USB add on for extra monitors. The addon hubs are usually not suited for high quality or being your primary monitors. They are often lower quality and resolution then dedicated PCI-X or PCI cards. This would most likely be the only route for laptops.
Here is one after a quick search, you might find it cheaper. With this product you can only use 2 at 1 one time. So for the laptop you would use the laptops own screen, the 1 video out that all laptops have and then 2 usb adapters for a total of 4 screens. Without getting something really complicated that's probably going to be the limit for a laptop.
If your getting a MAC all of this can change as your options are most likely limited. I would check with the local Apple store. There are not to many things that you can get "non Apple" to fit Macs. Most likely you have to buy it from Apple directly and you will pay for it. It's similar to going to the dealer for car parts, although with Macs often it's the only choice.
