ETYM Peruv. quipu a knot.
A cord with knots or other cords attached to it, used by ancient Peruvians for calculating and keeping records.
Knotted cords used as Inca mnemonic device.
Device of knotted cords, used by Incas of Peru to calculate or order information.
Device used by the Incas of ancient Peru to record numerical information, consisting of a set of knotted cords of one or several colors. Among its applications was the recording of granary and warehouse stores.