This paper provides an overview of the successive stages in the development of Charles Babbage's Analytical Engine, based on the blueprints held in the Babbage Papers Archive, accessible online through the Science Museum in London. The first person to decipher these schematics was Allan Bromley, whose contributions in the 1980s and 1990s significantly advanced our understanding of Babbage's pioneering work. The Science Museum's digitization of the Babbage Papers enables a chronological exploration of the evolution of Babbage's machines. The focus is on the Analytical Engine, shedding light on its lesser known but crucial transitional phases.

翻译：本文概述了查尔斯·巴贝奇分析机发展的各个连续阶段，基于伦敦科学博物馆在线提供的巴贝奇论文档案中的蓝图。首位破译这些设计图的是艾伦·布罗姆利，他在20世纪80年代和90年代的贡献显著加深了我们对巴贝奇开创性工作的理解。科学博物馆对巴贝奇论文的数字化使得能够按时间顺序探索巴贝奇机器的演变过程。本文重点聚焦于分析机，揭示其鲜为人知但至关重要的过渡阶段。