ðə kwˈɪpuː ʌvðɪ ˈɪŋkəz wʌzɐ sˈɪstəm ʌv kˈʌlɚd nˈɑːɾᵻd kˈoːɹdz jˈuːzd tə ɹᵻkˈoːɹd nuːmˈɛɹɪkəl dˈeɪɾə, lˈaɪk ɐdvˈænst tˈæli stˈɪks bˌʌt nˌɑːt jˈuːzd tə pɚfˈɔːɹm kˌælkjʊlˈeɪʃənz.
The quipu of the Incas was a system of colored knotted cords used to record numerical data, like advanced tally sticks – but not used to perform calculations.