This document provides an instruction manual for a computer architecture course. It covers several topics related to computer hardware and software components. The document includes 6 chapters that describe: 1) basic computer architecture concepts like CPU, memory, storage and how information is stored; 2) hardware units like processors, motherboards and buses; 3) common computer issues and troubleshooting techniques; 4) input/output devices and interrupts; 5) computer languages from machine to high-level; 6) software types like operating systems and applications. Each chapter also includes review questions and suggested additional readings.