Which of the following computing devices did not exist in the pre-computing age to the 19th century? by Sunday | Jan 18 | Computer Studies WAEC | 0 comments A. Napier’s bone B. Abacus C. ENIAC D. Slide Rule Correct Answer: Option C – ENIAC Users Also Read These:Which of the following was referred to as ‘Province…The main cause of the decline of the Benin Kingdom…Muhammad es Sadek was a 19th-century ruler of?A major similarity of the 19th-century jihads in…Ibadan-Ijebu relations in the 19th Century became…