Computer architecture textbook, open book, Ahmat Bindal author, detailed diagrams, CPU components, ALU, registers, cache memory, bus structures, von Neumann architecture, Harvard architecture, pipelining, RISC vs CISC, assembly language, programming examples, circuit boards, microprocessors, electronic components, wires, breadboard, laboratory setting, university classroom, wooden desk, fluorescent lighting, daytime, soft focus, educational atmosphere.