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Computer Virus — Revision Notes

ICSE · Class 7 · Computer Studies

Computer Virus revision notes for ICSE Class 7 Computer Studies: 4 topics in quick points. Part of the ICSE Class 7 Computer Studies syllabus.

45 questions30 flashcards5 concepts

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Key Topics to Revise

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1. Malware and Computer Virus

  • Malware refers to software intentionally created to cause harm to a user, computer system, or network.
  • The word Malware is composed of Malicious and software.
  • A computer virus is a malicious program with the ability to execute and replicate itself.
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2. Sources and Symptoms of Virus Attack

  • A virus can enter through infected storage media such as CD, DVD, and pen drive.
  • Pirated software can carry viruses.
  • Hired computer games or audio or video CDs can also be sources of viruses.
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3. Types of Viruses

  • Viruses are classified into four categories: Boot sector virus, Program virus, Macro virus, and Stealth virus.
  • Boot sector virus affects the Boot Sector or Master Boot Record of the hard disk during booting.
  • Boot sector virus can halt the system and may stop the operating system from loading.
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4. Other Malware

  • Worm is a self-sufficient computer program that copies and multiplies itself using computer networks and security flaws.
  • Worm does not need another program or user to spread.
  • Worm does not affect the functioning of a system but interrupts services and drastically decreases available memory.

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Full Notes

Key Concepts

Malware means malicious softwareA computer virus is a maliciousVIRUS stands for Vital Information ResourcesA virus can enter through infectedCommon signs include slow processor speed

Frequently Asked Questions

What are the important topics in Computer Virus for ICSE Class 7 Computer Studies?
Key topics in Computer Virus include Malware and Computer Virus, Sources and Symptoms of Virus Attack, Types of Viruses, Other Malware. Study these first, then practise questions on each for Class 7 exams.
How should I revise Computer Virus for Class 7 exams?
Learn the core ideas first, then work through the 45 practice questions on Computer Virus. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All ICSE Class 7 Computer Studies Revision Notes

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