CAD (Computer-Aided Design) software has replaced traditional drawing boards by allowing designers and engineers to create, modify, analyze, and optimize designs digitally. It increases precision, efficiency, and ease of modification compared to manual drafting.
(A) CAD – Correct. Software used for digital design and drafting.
(B) CAM – Computer-Aided Manufacturing, used for manufacturing processes.
(C) MAC – Refers to Apple Macintosh computers, not design software.
(D) UNIX – An operating system, unrelated to drafting.