which of the following is optical memory

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Q:
Which of the following is optical memory?

1
Bubble Memories
2
floppy disk
3
CD-ROM
4
Core Memories

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Answer : 3. "CD-ROM"

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Q:
Which of the following is optical memory?

Answer : 3. "CD-ROM"

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Q: Which of the following is optical memory?

Answer : 3. "CD-ROM"

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Q:
Which of the following is optical memory?

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