Образуйте от слова CALCULATE однокоренное слово так, чтобы оно грамматически и лексически соответствовало содержанию текста.
Invention of Computer
Many encyclopedias say that the first computer was developed by Howard H. Aiken (and his team) in America between 1939 and 1944. It was a large-scale, programme-controlled machine which could make a very complex _____.
Источник: «Сдам ГИА», задание № 48.