Modern computer laboratory, solo male professor, 50s, glasses, balding hair, formal wear, white shirt, tie, black pants, holding tablet, pointing at digital screen, complex circuit diagrams, wires, microchips, CPU models, bookshelves filled with computer architecture textbooks, David A. Patterson's "Computer Architecture and Design" book on desk, bright fluorescent lighting, 3/4 composition, shallow depth of field, academic atmosphere, detailed textures, realistic rendering.