eas and concepts a better understanding than only words. Good presentations use things such as slides and transparencies to express views. A projector could be used for a large audience or a rolling slide show could be produced on a computer for smaller audiences. Multimedia presentationsThese presentations are useful for training students as the students can see demonstrations and interact with the software. There are many different types of packages, for multimedia presentations, that suit each person needs.ColourIf you want to print out your graphics then you will need a printer. An ink-jet printer is not that expensive if you need one or you could buy a laser printer which is a better quality but tends to be quite expensive. If you do not have a colour printer then you do not need to worry about colour in the design. If you use black and white on screen then it will come clearer if you have a black and white printer.Computer aided designEngineers, architects, etc use CAD, short for computer aided design, so that they can produce high quality drawings. You can have plans of houses, maps, 3-D plans of a room etc. CAD lets the designers to make changes quite easily. They packages even let you rotate the images at different angles. The most popular CAD package is AutoCAD, which is quite expensive but there are many cut down versions available here are the advantages of using CAD:1. It can save time2. It enables you to produce accurate scale diagrams3. It is easy to alter images4. You can produce a 3-D image, which is useful for diagrams of rooms, buildings etc.5. Images can be saved on disk and retrieved later6. Drawings can be scaled up and down Garden design softwareThis is one-specialist applications of designs of software and it enables gardeners to place their plants and features like pond and paths and see how the 3-D garden would look like. You even can see the garden at different seasons. ...