Tag
babbage
- Nov 11, 2025 Carry Propagation in the Difference Engine No. 2 How a figure wheel registers that a carry is owed without performing it, how the latched warnings are serviced by staggered carry arms, and what the two-phase cycle costs in timing. computing history
- Feb 1, 2025 The Analytical Engine Store, Mill, and Barrel Control How a planned 1830s engine separated storage from arithmetic, sequenced operations from punched cards, and used a studded barrel as a microprogram store. computing history