There are some things to consider when you choose to buy projector. As the name suggests, a projector is used to magnify an image so that it is clearly visible to an audience. Projectors have been used for presentations and meetings and even in school projects since long. However, digital technology has further introduced advanced projectors which use either LCD or DLP technologies. LCD projectors provide a clear display and are best for meetings and presentations since images often have paragraphs or sentences that need to be magnified properly. On the other hand DLP projectors are not bulky and are easier to carry. Such projectors are ideal for school projects which often involve movies. When buying a projector, you need to be sure about your requirements and your budget. If you are still confused you can either research online or ask the person at the store to help you out.