Computing devices that were discovered in the mechanical era?

During the mechanical era, several groundbreaking computing devices were developed, including the mechanical calculator, such as Blaise Pascal's Pascaline in the 17th century and Gottfried Wilhelm Leibniz's stepped reckoner. These devices utilized gears and levers to perform arithmetic calculations, laying the groundwork for future computational advancements. Furthermore, Charles Babbage's Analytical Engine, conceived in the 1830s, is often considered a precursor to modern computers due to its ability to be programmed for various tasks.