Engineering drawing is a universal graphic language used by engineers to convey design ideas to others. Autodesk, the fourth largest software company in the world, initially released AutoCAD in 1982 and has since provided CAD solutions to a variety of industries in over 160 countries with over 6 million customers. AutoCAD is user friendly, saves time, allows quick design creation, uses familiar symbols, improves on hand drafting, and can be customized.