Modern computer room, desktop computer, tower case, motherboard, CPU, RAM, GPU, wires, keyboard, mouse, monitor, ergonomic chair, professional male engineer, 30s, glasses, beard, casual clothes, focused expression, hands typing, designing, architecture book, "Computer Systems Design and Architecture 2nd Edition" on the desk, coffee cup, notebooks, pens, subtle warm lighting, wooden flooring, minimalistic background, shallow depth of field, slight blur effect.