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2. Computer virus - Wikipedia

   en.wikipedia.org/wiki/Computer_virus

   This is an accepted version of this page This is the latest accepted revision, reviewed on 30 December 2024. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...

3. Virus - Wikipedia

   en.wikipedia.org/wiki/Virus

   A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.

4. Introduction to viruses - Wikipedia

   en.wikipedia.org/wiki/Introduction_to_viruses

   A virus with this "viral envelope" uses it—along with specific receptors—to enter a new host cell. Viruses vary in shape from the simple helical and icosahedral to more complex structures. Viruses range in size from 20 to 300 nanometres; it would take 33,000 to 500,000 of them, side by side, to stretch to 1 centimetre (0.4 in).

5. Protect your computer from viruses in 5 easy steps - AOL

   www.aol.com/lifestyle/5-ways-protect-computer...

   Here are five easy things you can do to avoid computer viruses. Tip #1: Use antivirus software. If you don't have one already, install an antivirus software program, such as Malwarebytes. This can ...

6. Trojan horse (computing) - Wikipedia

   en.wikipedia.org/wiki/Trojan_horse_(computing)

   The computer term "Trojan horse" is derived from the legendary Trojan Horse of the ancient city of Troy. For this reason "Trojan" is often capitalized. For this reason "Trojan" is often capitalized. However, while style guides and dictionaries differ, many suggest a lower case "trojan" for normal use.

7. Antivirus software - Wikipedia

   en.wikipedia.org/wiki/Antivirus_software

   In 1983, the term "computer virus" was coined by Fred Cohen in one of the first ever published academic papers on computer viruses. [10] Cohen used the term "computer virus" to describe programs that: "affect other computer programs by modifying them in such a way as to include a (possibly evolved) copy of itself."