CAD/CAM (computer-aided design and computer-aided manufacturing) refers to computer software that is used to both design and manufacture products. CAD is the use of computer technology for design and design documentation.
SolidWorks is a 3D solid modeling package which allows users to develop full solid models in a simulated environment for both design and analysis. In SolidWorks, you sketch ideas and experiment with different designs to create 3D models.
SolidWorks is used by students, designers, engineers, and other professionals to produce simple and complex parts, assemblies, and drawings. Designing in a modeling package such as SolidWorks is beneficial because it saves time, effort, and money that would otherwise be spent prototyping the design.