This term is used to describe a series of cords knotted to remind the user of important facts.           a. glyphs   b. knotmind   c. cordage   d. quipu

The term that was used to describe a series of cords knotted to remind the user of important facts D. Quipu. This term refers to the history of  the Incas and other ancient Andean cultures, and its main features are that it was used as a method of recording information and communicating. It usually consisted of horizontal string or rarely of wooden bar, from which hang any number of knotted and coloured strings made from either cotton or wool.

If u can translate that to english i will surely you!

Andean mountains amazon basinatacama desert brazilian highlands