Name a common software used for CNC programming.

Mastercam and Fusion 360 are indeed common software choices for CNC programming, and they are specifically designed to generate toolpaths for CNC machines. Mastercam is one of the oldest and most widely used CAM (Computer-Aided Manufacturing) software in the industry, allowing users to create precise toolpaths for a variety of machining operations such as milling, turning, and routing. Fusion 360 combines CAD and CAM capabilities, providing users with an integrated platform for product design, engineering, and manufacturing processes. This versatility makes these tools highly effective in CNC machining environments, as they are tailored for the complexities involved in CNC programming, such as defining operations, adjusting parameters, and simulating machining processes.

In contrast, AutoCAD is primarily a CAD (Computer-Aided Design) software focusing on creating 2D and 3D designs rather than directly programming CNC machines. SketchUp is primarily used for architectural design and 3D modeling and lacks the specialized features for generating toolpaths for CNC applications. Photoshop, being an image editing software, does not relate to CNC programming at all. Hence, the software listed in the correct answer aligns with the requirements for CNC programming, making it the appropriate choice.