Which term specifically refers to the computer control of machines for fabricating complex components?

• A. Automated production
• B. Bio-compatibility
• C. Bowing
• D. Computer numerical control (CNC)

Answer: (D)

Computer numerical control refers to using a computer to guide machine tools like mills and lathes to cut, shape, and drill parts with high precision. This setup allows the production of complex geometries and tight tolerances consistently, because a program translates the design into exact tool paths that the machine follows. It’s the specific mechanism that enables direct computer control of fabrication processes, which is why it’s the best fit for describing fabricating complex components. Broader automated production describes automation in general, not the computer-controlled tool operations; bio-compatibility relates to how materials interact with living tissue, and bowing isn’t relevant to machine control in fabrication.