Computer-aided design (CAD) involves creating computer models defined by geometrical parameters.
CAD (computer-aided design) software is used by architects, engineers, drafters, artist, and other to create precision drawings or technical illustrations. CAD software can be used to create two-dimensional (2-D) drawings or three-dimensional (3-D) models.
Computer-aided manufacturing (CAM) is the use of software to control machine tools and related ones in the manufacturing of work pieces.
CAM may also refer to the use of a computer to assist in all operations of a manufacturing plant, including planning, management, transportation and storage
CAM software was seen to have several shortcomings that necessitated an overly high level of involvement by skilled CNC machinists.
Computer-aided manufacturing (CAM) is an application technology that uses computer software and machinery to facilitate and automate manufacturing processes. CAM is the successor of computer-aided engineering (CAE) and is often used in tandem with computer-aided design (CAD).
Computer-aided manufacturing (CAM) uses geometrical design data to control automated machinery. CAM systems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems.
Since both CAD and CAM use computer-based methods for encoding geometrical data, it is possible for the processes of design and manufacture to be highly integrated. Computer-aided design and manufacturing systems are commonly referred to as CAD/CAM.
credit by Praveen Rathore