CAD is computer aided design. CAD is used for designing objects such as architectural designs, mechanical designs, and electrical designs. When you use this type of software tool you'll be able to get results that are perfect each time and that look very professional. Most software packages will come with a multitude of graphics that are already built into the system. All you need to do is choose what you want and add them to the design that you're working with. You don't need to be an artist to use a CAD tool. The features that are built into this type of software will do all the aligning for you. You'll be able to have all the design power that you need when you use CAD software. Most CAD software programs will also come with many templates that you can use, as well as the symbols that you need to create designs that are readable and 100% useable. Besides using the CAD tool to create designs for your architectural or mechanical business you can use it to create floor plans to design your new home, landscaping designs for your garden, circuit diagrams for your electrical needs, and block diagrams. There are many CAD software packages that you can choose from. The best thing is to know exactly what you want from the software so that you're not disappointed with your purchase. CAD software doesn't come without a high price and most times will be un-returnable once you've opened it and installed it on your computer. If you're unsure about what CAD software package to buy you may be able to try a free download that many software manufacturers will offer to try and get your attention. This will allow you, for a short period of time, to work with the CAD software to be sure it's what you want and does what you want it to do.