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A PRESENTATION ON    COMPUTER VIRUS PRESENTED BY: MIHIR ROAT F.Y.  B.C.A
Flow of contents <ul><li>Introduction  to computer </li></ul><ul><li>Introduction to computer viruses ? </li></ul><ul><li>...
Introduction  to computer <ul><li>The term computer has been borrowed from compute that means – to calculate </li></ul><ul...
Introduction to Computer viruses <ul><li>A computer viruses are a type of software program, like a biological virus </li><...
Introduction to computer  viruses (cont’d) <ul><li>The virus affect the pc causing damage to system files, user data or ot...
Type of  viruses <ul><li>There are about millions of viruses present & daily 6 to 7 new viruses are found </li></ul><ul><l...
Causes and effects of computer viruses <ul><li>Computer viruses spread by attaching themselves to the other computer progr...
Causes & effects of computer viruses <ul><li>A computer  viruses can infect the program and it may lead to loss of importa...
Prevention & cure of computer viruses <ul><li>Since virus can cause extensive effect to your important files ,possible ste...
Prevention & cure of computer viruses (cont’d) <ul><li>Keep you system secure from viruses by using anti virus software </...
Some anti viruses software
Conclusion  <ul><li>I think we should not use the pc without any antivirus security as it may cause  damage to our importa...
Sources <ul><li>Data referred from pc book </li></ul><ul><li>The following are the web site for information on computer vi...
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Presentatin on computer viruses

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Transcript of "Presentatin on computer viruses"

  1. 1. A PRESENTATION ON COMPUTER VIRUS PRESENTED BY: MIHIR ROAT F.Y. B.C.A
  2. 2. Flow of contents <ul><li>Introduction to computer </li></ul><ul><li>Introduction to computer viruses ? </li></ul><ul><li>Different types of viruses </li></ul><ul><li>Causes & effects of computer viruses </li></ul><ul><li>Prevention & cure of computer viruses </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Introduction to computer <ul><li>The term computer has been borrowed from compute that means – to calculate </li></ul><ul><li>A computer is a device the data input by the user, analyses it & gives a output to the user </li></ul><ul><li>In laymen language a computer is a machine which reduces the work load </li></ul>
  4. 4. Introduction to Computer viruses <ul><li>A computer viruses are a type of software program, like a biological virus </li></ul><ul><li>It causes various problems to computer system </li></ul><ul><li>like : system failure , display problems , slow down you pc, etc. </li></ul><ul><li>The symptoms of pc when it gets infected or virus </li></ul><ul><li>Unusual & strange messages </li></ul><ul><li>on the computer screen </li></ul>continue
  5. 5. Introduction to computer viruses (cont’d) <ul><li>The virus affect the pc causing damage to system files, user data or other function of your computer </li></ul><ul><li>Like biological virus this software viruses causes damage before the victim are aware of its existence </li></ul><ul><li>Now we will see the major type of computer viruses & its effect on our pc </li></ul>
  6. 6. Type of viruses <ul><li>There are about millions of viruses present & daily 6 to 7 new viruses are found </li></ul><ul><li>The following are the types of viruses: </li></ul><ul><li>Resident Viruses, Direct Action Viruses, Overwrite Viruses , Boot-sector Virus , Macro Virus , Directory Virus, Polymorphic Virus, File Infectors, Companion Viruses, FAT Virus, Worms, Trojans or Trojan Horses , Logic Bombs, etc. </li></ul>
  7. 7. Causes and effects of computer viruses <ul><li>Computer viruses spread by attaching themselves to the other computer program files(usually .exe, .com, .bat, .dll, ) </li></ul><ul><li>A computer virus may be hidden or protected from the users eye </li></ul><ul><li>These viruses spread through infected files in Floppy, Cd, Usb pen drive & internet </li></ul>
  8. 8. Causes & effects of computer viruses <ul><li>A computer viruses can infect the program and it may lead to loss of important data </li></ul><ul><li>These viruses are transfers to our data through any floppy or cd </li></ul><ul><li>If any infected file is copy in your system then it will infect the other files and function too </li></ul>
  9. 9. Prevention & cure of computer viruses <ul><li>Since virus can cause extensive effect to your important files ,possible steps must be take to prevent attack on your pc </li></ul><ul><li>If you use floppy disk to boot your pc then write protect it </li></ul><ul><li>Make backups of your impotent files in floppy or cd and keep it in a safe place you will need it later </li></ul>
  10. 10. Prevention & cure of computer viruses (cont’d) <ul><li>Keep you system secure from viruses by using anti virus software </li></ul><ul><li>Anti virus can scan the infected file in you data and can repair it. </li></ul><ul><li>Keep your anti virus update so it can help you to prevent unwanted spams and viruses enter your computer through floppy, cd, usb or internet </li></ul>
  11. 11. Some anti viruses software
  12. 12. Conclusion <ul><li>I think we should not use the pc without any antivirus security as it may cause damage to our important data </li></ul><ul><li>Do not copy or transfer any data or file without scanning the disk </li></ul>
  13. 13. Sources <ul><li>Data referred from pc book </li></ul><ul><li>The following are the web site for information on computer viruses </li></ul><ul><li>Isoftwarereviews.com </li></ul><ul><li>Images from google.com </li></ul><ul><li>eHow.com </li></ul>
  14. 14. Thank you
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