CAD or Computer Aided Design software was introduced in the late 1960's to expedite engineering drawing process. While CAD is used mainly in engineering drawing and construction architecture, it can also used for other purposes. There are various flavours of CAD available today and there are different methods of classifying them. Types of CAD Software 2 Dimensional CAD (2D CAD) 2D CAD is the pioneer of CAD software, and was developed in the early 70s. At that time, major automobile, aerospace and other engineering companies developed in-house tools to automate repetitive drafting requirements. 2D CAD relies on basic geometric shapes like lines, rectangles, circles, etc. to produce flat drawings. These types of softwares have been first developed way back in 1970’s. AutoDesk is one of the pioneering companies that has played a significant role in developing CAD software. 3 Dimensional CAD (3D CAD) 3D CAD is a step up from the 2D CAD software of yes...