You can use Multiple Monitors with your Windows Operating System. In order to connect multiple monitors to a single CPU, you would need two things. The first is hardware and second is software requirements. The number of monitor which can be connected to a computer, depends on how many monitors your graphics card support. In case you do not have an extra graphics card, you would need to buy an appropriate graphics card. Dual Monitor Graphics card are relatively cheaper and can be added to the CPU in the PCI or PCI Express graphics card. Selection of graphics card is one difficult thing and must be done really carefully.
Windows 7 & Windows 8 provides the requires software support and using the multiple monitors is really easy. Windows allows to duplicate or extend the the desktop to other monitors. There are dual monitor software applications that can really help you to manage and make the most out of your dual or multiple monitors.