Software/application Introduction A. AutoCAD was derived from a program that began in 1977, and then released in 1979 called Interact CAD, also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle. B. AutoCAD can be defined as the use of computer systems to assist in the creation, modification, optimization of a design. In this, we can create both 2D and 3D drawings used in construction and manufacturing. It was developed by John Walker in 1982 with the help of AUTODESK and maintained it successfully C. Mechanical engineering is a broad field that encompasses industry, business, medicine and even law. Planning and designing mechanical objects is the primary focus of mechanical engineers, whether they are producing engine and motor components or complete devices like refrigerators and robots. Software/application Interface A. On the Start tab, click Start New Drawing. This opens a new drawing based on the default drawing template file. If a default drawing template file is not specified, the Select Template dialog box is displayed, from which you can choose an appropriate drawing template file. B. The 2D and 3D drawings are created on the given screen. The display contains all the tools and icons which make the process to create any drawing. There are particular shortcuts for icons. C. Computer-Aided Design(CAD) or Computer-Aided Design and Drafting (CADD) can be defined as using computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and create a database for manufacturing D. CAD is an important industrial art extensively used in many applications, including automotive, shipbuilding, and aerospace industries, industrial and architectural design, prosthetics, and many more. Software/application in Industry A. Mechanical engineering is a broad field that encompasses industry, business, medicine and even law. Planning and designing mechanical objects is the primary focus of mechanical engineers, whether they are producing engine and motor components or complete devices like refrigerators and robots. B. Standardization is one of beneficial advantage of using AutoCAD. It is used as standard for Computer Aided Design, so that other packages of CAD emulates operations of AutoCAD and ensure about compatibility of files across industrial boundaries