A signed, unpublished manuscript written by Joseph Marie Jacquard in 1809 details the development, operation, and uses of the Jacquard attachment for a loom, which allowed automatic control of all the actions required to weave complex patterned fabrics. Such modified looms could be programmed with chains of punch cards. Apart from its significant impact on the 19th-century textile industry, the idea of programming devices with punch cards influenced computer pioneers.