A device for weaving elaborate designs by a machine invented by Joseph Marie Jacquard (1752 1834) between 1801 and 1810. The Jacquard mechanism is attached to a loom and operated by a punched card system which selects individual warp threads. A variety of mechanically operated jacquard machines exist providing control over 100, 200, 400 or 600 ends. Jacquard systems can now be electronically controlled. There are also Jacquard systems for knitting machines. See also draughting and point paper.