This document talks about setting up multiple monitors for a laptop computer. The document also talks about how to connect an external monitor to the laptop making it a dual monitor laptop.
For connecting multiple monitors to a laptop, you would need appropriate hardware and optionally multiple monitor software. First of all check whether your laptop has a port to connect extra monitor or not? In case your laptop does have a port (e.g. VGA Port), then you should be able to connect another monitor to your laptop. Do you have a spare monitor available? In case yes you do have and you do know how to connect monitor wires to laptop, then that might be the only thing you would need to connect external monitor to your laptop. Connecting external monitor to laptop requires connecting two wires, one wire of monitor goes to power supply and other gets connected to the port available in the laptop. Connect external monitor to laptop only if you are very sure that you will be able to connect and disconnect the external monitor to the laptop. In case you are not sure, can you call your friend to help you? It is always better to be very much sure when playing around with computer hardware.
In case your laptop does not have a port to connect an external monitor or you wish to connect multiple external monitors to your laptop, you would need extra hardware. The extra hardware you would need to connect multiple external monitors to your laptop can be a USB Graphics Card. The USB Graphics card is a graphics card which can be connected to the USB Port of your Laptop or Desktop Computer. Depending on the number of external monitors you wish to connect and control, you would need different type of USB Graphics Card.
Note : In case you wish to display output of your laptop on multiple monitors and do not wish to control external monitors, you can go for a cheaper option i.e. Video Switch.
MurGeeMon : A Dual Monitor Software Utility to allow full control of dual monitors connected to your windows pc.
Multiple Monitors : More Information about Settings up and using Multiple Monitors.
MurGee Home : Download Mouse Click / Automation Utilities, Screen savers, and more.