The first calculating machine in data processing was? by Sunday | Mar 21 | Accounting WAEC | 0 comments A. abacus B. pascal C. punched cards D. digital Correct Answer: Option A A. abacus Users Also Read These:CSC 121 Theory Question: Data Processing Stages -…SS1 Second Term Data Processing Lesson Note – Word…A motor of a corn mill machine operates on…SS1 Second Term Further Mathematics Lesson Note –…SS1 First Term Data Processing Lesson Note –…