O Omveer 🎓 Tutor III ⭐ 5.26K Points 📊 Computer Q. Information on a hard disk is usually backed-up using a? (A) CD-ROM (B) Magnetic tape (C) Floppy disk (D) All of the above 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) CD-ROM You must be Logged in to update hint/solution 💬 Discussion 💬 Comment