Categories Computer Science one of the first recognized calculating devices was? Post author By esimpk Post date December 1, 2021 No Comments on one of the first recognized calculating devices was? A: Abacus B: Analytical engine C: Difference engine D: None of these ← Who is known as “Father of Computer Science”? → Pentium II is a _________generation computer. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.