For the study of how much time and/or memory a computer algorithm can take, see Computational complexity theory.
To link later:
... 14th century - 15th century - 16th century Decades: 1430s 1440s 1450s 1460s 1470s - 1480s - 1490s 1500s 1510s 1520s 1530s Years: 1480 1481 1482 ...