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WEEK 4:
ELECTRO-MECHANICAL COUNTING DEVICES
JOSEPH JACQUARD’S LOOM
The Jacquard machine is a device fitted to a power loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. It was invented by Joseph Marie Jacquard in 1804. The loom was controlled by a chain of cards, a number of punched cards, laced together into a continuous sequence. Multiple rows of holes were punched on each card, with one complete card corresponding to one row of the design. The Jacquard loom was the first machine to use punch cards to control a sequence of operations.
CHARLES BABBAGE’S MACHINES
Charles Babbage (26 December 1791 – 18 October 1871) was an English polymath, a mathematician, philosopher, inventor and mechanical engineer. Babbage originated the concept of a digital programmable computer. Babbage is
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