This report provides a detailed analysis of computer systems and platform technology, covering various aspects of system architecture, processor architecture, and advanced topics like Bitcoin mining. It begins with an exploration of system architecture, identifying and explaining components on a main circuit board, differentiating between PCIEX4, PCIEX8, and PCIEX1, and elucidating the roles of CPU_FAN and SYS_FAN3 pins. The report then delves into processor architecture, comparing 32-bit and 64-bit processors, their impact on RAM and applications, and the performance improvements offered by multi-core processors. Furthermore, the report includes building a recommended platform machine, detailing components like motherboards, CPUs, memory, storage, and graphics cards, along with comparative analyses and technical specifications. Finally, it addresses advanced questions related to Bitcoin mining, including its definition, hash rate measurement, hardware types, minimum system requirements, and mining pools. This document is available on Desklib, a platform offering a wide range of study tools and resources for students.