Without a monitor, you would not be able to see all the information you have on your computer. So there is no need to convince anyone how critical having one is. Whether you use a desktop or a notebook, it is the monitor that brings all the hard work you do to life. It is the unit that displays all the information from the computer.

Generally, computer monitors come in various sizes, shapes, colors, and styles. The main sizes are 15, 17, 19, and 21 inch. For long hours of work, it is recommended that you purchase a larger monitor, as you will be able to see the information better, and are less likely to strain your eyes.

Based on the technology that is used to make them, monitors are normally categorized into two types, cathode ray tube, better known as CRT and liquid crystal technology, more commonly known as LCD.

The CRT monitors are older and bulkier, largely due to the technology they use to operate. It is actually the same technology that is used to operate television screens. This monitor will suffice if you are engaging in simple activities on the computer, such as sending and receiving emails, or using Microsoft Word. They are very dependable and efficient, and are not likely to fail often.

On the plus side, CRT monitors are very affordable and better on your eyes. This is because the newer flat screen models actually reduce glare. The main disadvantage with these monitors is that they are quite heavy, and bulky. Even the flat screen models are heavier than their counterparts. Due to their size, they are likely to take up a lot of space, so they might not be the best buy if you are concerned about space.

LCD monitors deliver a sharper picture and are more energy efficient. Although more expensive than the CRT monitors, they have a sleeker, slimmer design and so don't take up a lot of space. They are preferred to the older CRTs, because they deliver very crisp images, and are lightweight. In terms of weight, a LCD monitor can be as much as 80% lighter than a CRT monitor of comparable size.

One disadvantage of the LCDs relates to color purity and color quality. While all models of the CRT offer good color quality, the same cannot be said of all LCD models. Another drawback with the LCD monitor is, it has a narrow viewing angle. What this means is, depending on the angle from which you are viewing, the screen can appear distorted. This does not occur with CRT monitors, as they can be viewed from anywhere, without distortion.

When purchasing a monitor consider what you are using the computer for. If you will be doing simple work, then the CRT monitor will work very well, and it is very bankable. However, if you have a bigger budget, and would prefer a stylish more modern looking monitor, then go ahead and get the LCD.