A Ankit Singh 🎓 Tutor ⭐ 8.03K Points 📊 Computer Q. The earliest calculating device is (A) calculator (B) abacus (C) difference engine (D) analytical engine 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (B) abacus You must be Logged in to update hint/solution 💬 Discussion 💬 Comment