The Inca May Have Invented the World's First Computer System -- 600 Years Ago

Here's what you'll learn when you read this story:The Inca quipu was a complex system of knotted cords, encoded numerical records and possibly even a full logosyllabic language.New research demonstrates that the quipu's hierarchical structure can function as a versatile modern computer data structure.The researchers built working spreadsheets, file systems, and encryption tools powered by quipu data, rivaling conventional computing methods.