Quipu is a data logging system used in South America.
Explanation:
This is a data logging system used before the arrival of Europeans.
Khipu consists of several pieces of sparrows, sometimes up to 2,000, which hang on a piece of rope, typically made of llama or alpaca hair, with knots of individual styles and in specific locations.
A quipu, or knot-record (also called khipu), was a method used by the Incas and other ancient Andean cultures to keep records and communicate information. In the absence of an alphabetic writing system, this simple and highly portable device achieved a surprising degree of precision and flexibility.
