Von Neumann architecture diagram, Harvard architecture diagram, side by side comparison, white background, detailed circuits, wires, resistors, capacitors, transistors, microchips, CPU, ALU, registers, buses, memory units, control units, arithmetic logic unit, instruction register, program counter, stack pointer, blueprints, 3D isometric view, futuristic laboratory, scientist in white coat, microscope, computer screens, coding on blackboard, bright fluorescent lighting, shallow depth of field.