A counting board used for additions and subtractions with the use of painted lines or wood ¡, stone or metal curved grooves moving them to different sides in groups depending in what you want to do.
A board that helped make divisions and multiplications with the locations of numbers with the use of rows and columns and adding or subtracting them with the use of diagonals
First mechanic machine for making additions and subtractions. It had gadgets to make the system work and it worked by spinning them and putting the base number you wanted and you added or quited spaces depending what type of operation you wanted to do.
The Jacquard's Loom
It was a weaving machine used to stamp patterns in looms in an easier way. It requiered manual work and needed boards with points.
Charles Babbage & his engines
A computing machine called "the difference engine" was made. It had a lot of storage such as data and information. It was used to solve complex problems.
Made by Charles Babbage. The Analytical Engine was meant to be a general-purpose machine, fully program-controlled, automatic mechanical digital computer, an upgraded version of the difference engine, it was the first computer.
Herman Hollerith and this Tabulating Machine
The herein described method of compiling statistics which consists in recording separate statistical items pertaining to the individual by holes or combinations of holed punched in sheets of electrically non-conducting material, and bearing a specific relation to each other and to a standard, and then counting or tallying such statistical items separately or in combination by means of mechanical counters operated by electro-magnets the circuits through which are controlled by the perforated sheets, substantially as and for the purpose set forth. It was an advanced version of the computer by Charles Babbage.