Engineering Drawing is the universal language of engineers—a standardized way to visually represent components, assemblies, and systems. It communicates detailed specifications such as: Shape and dimensions Tolerances and fits Materials Surface finish Assembly instructions It uses standardized conventions like orthographic projection, section views, dimensioning, and symbols to ensure clarity and precision. 💻 What is CAD (Computer-Aided Design)? CAD refers to the use of computer software to create, modify, analyze, and optimize 2D drawings and 3D models of physical objects. Popular CAD tools: AutoCAD (2D & basic 3D) SolidWorks (parametric 3D modeling) CATIA, Siemens NX, Creo (advanced CAD/CAM) Fusion 360, FreeCAD (cloud-based or open-source)