R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Microsoft Word Q. A memory bus is mainly used for communication between (A) Processor and I/O devices (B) Processor and memory (C) Input devices and output devices (D) I/O devices and SMPS 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) Processor and memory