The first calculating machine in data processing was? By: Sunday|Published on: Mar 21|Categories: Accounting WAEC| 0 comments A. abacus B. pascal C. punched cards D. digital Correct Answer: Option A A. abacus Users Also Read These:SS1 Second Term Further Mathematics Lesson Note –…SS1 Second Term Data Processing Lesson Note – Word…SS1 First Term Data Processing Lesson Note – Data…Data Processing WAEC 2015SS2 First Term Data Processing Lesson Note – Types…SEE ALSO The straight-line depreciation is?