Up until perhaps 10 years ago most computers only had one monitor. But slowly people are catching on to the benefits of using more than one. The fact is once you have worked with more then one monitor, you will find work on a single screened computer infuriatingly, frustrating.
Two Monitors is an absolute no brainer. If you spend more than 1 hour a day looking at a screen, and are not working with two monitors . . .then why not use 2. To be able to read off one screen and write on another is a basic necessity. Imagine keeping your exercise book tucked under your text book as you worked. . . how inconvenient would that be?
There are basic steps to add a second monitor but to make it really sing, there are a few extra tweeks.
Plug in a second monitor, to you PC, MAC or Laptop and then:
Ultramon (Paid) or Multimon (Free But Ugly) are two options for PC that make multiple monitors that little bit more usable. They add an extra button to your windows so you can move them quickly from one monitor to another. They also extend the task bar on to other monitors so as to give you more space.
To use more than two monitors normally requires some hardware changes. Most PCs of a certain quality will support two monitors, but to support more than 2 you will need a 4 head graphics card, or a PC that can take 2 graphics cards. The same would apply to a Mac.
Always get the exact same model of graphics card as your first if buying a second. If not buy a matching pair, low spec ones are very cheap. NVidia NVS cards we have found to be very reliable. If you are buying a new PC make sure there is room, for a 2nd card. You can get 4 head cards to fit in one slot, but they are limited in terms of single monitor performance.