Machine tools are the cornerstone of modern manufacturing, holding an irreplaceable role in core industries such as aerospace, semiconductors, medical equipment, and renewable energy. As product designs become increasingly sophisticated and quality standards grow more stringent, traditional machining approaches are no longer sufficient. For this reason, the precise planning provided by CAD/CAM software, together with the stable high-speed cutting power of direct-drive spindles, has emerged as the foundation of high-precision machining. This article explores the synergy between software and hardware — from the digital blueprint created by CAD/CAM, to the precise execution enabled by direct-drive spindles, and finally to closed-loop control and global application trends — offering a comprehensive perspective on the technological developments shaping the machine tool industry.