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JSS3: COMPUTER STUDIES - 1ST TERM

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  1. Computer Career Oppurtunities | Week 1
    5Topics
    |
    1 Quiz
  2. Computer Viruses I | Week 2
    7Topics
    |
    1 Quiz
  3. Computer Viruses II | Week 3
    7Topics
    |
    1 Quiz
  4. Introduction To The Internet | Week 4
    4Topics
    |
    1 Quiz
  5. Internet Terminologies | Week 5
    4Topics
    |
    1 Quiz
  6. The Concept of Digital Divide | Week 6
    5Topics
    |
    1 Quiz
  7. Database Concept, Definition And Terminologies | Week 7
    4Topics
    |
    1 Quiz
  8. Database II | Week 8
    4Topics
    |
    1 Quiz
  9. Database III | Week 9
    13Topics
    |
    1 Quiz
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Below are some possible signs that your computer may have been infected with a computer virus;

  • The appearance of strange characters.
  • Appearance of double extension on recently opened attachments e.g .vbs, .gif, .jpg, .exe.
  • When applications on the computer do not work properly.
  • When disk drives are inaccessible.
  • Slowing down response time.
  • The appearance of unusual error messages.
  • When anti-virus programs are blocked during installation.
  • Presence of tiny dots.
  • The system slows down or crashes
  • The computer stops responding or locks up from time to time.
  • The computer crashes and then restarts every few minutes.
  • The computer restarts itself.
  • Programs in the computer do not work effectively.
  • Programs disappear from the computer even when you did not intentionally remove them.
  • Strange sounds are heard from the inbuilt or external speakers.
  • New icons unknown to you appear on your desktop.
  • It can delete or change files.
  • It can load or run unwanted files.
  • It can make the cursor freeze.
  • Files do not save properly.

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