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:SS1 First Term Data Processing Lesson Note – Data…SS2 First Term Data Processing Lesson Note – Types…SS1 Second Term Further Mathematics Lesson Note –…JSS1 First Term Internet and Communication…SS2 First Term Data Processing Lesson Note – Data Modelling