Computer Science for IGCSE & O level - The Internet And Its Uses (Section 3 - No. 49)
What is the main difference between a virus and a worm?
Viruses need a host program, worms don't.
Worms need a host program, viruses don't.
Viruses affect files, worms affect networks.
Worms affect files, viruses affect networks.
Explanation
Viruses attach to other files and need a host program, while worms are standalone programs that spread across networks.
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