This report, prepared for ACME Training as part of a Higher National Certificate in Computing course, explores the fundamental aspects of computer system architecture. It identifies the key components and subsystems within a computer system, detailing their organization and interconnections. The report provides a comprehensive explanation of the Central Processing Unit (CPU), including its purpose, operation, and role in executing instructions. Furthermore, it analyzes the CPU's dependency and performance in relation to associated systems and subsystems like RAM and storage. The assessment aims to equip non-technical personnel with a foundational understanding of computer hardware and its impact on overall system performance. The report includes a handout with slides summarizing the key concepts and a bibliography of referenced sources. This assignment is available on Desklib, a platform providing study resources for students.