What are Computer Viruses?

[coronaerabrahim]

Hi

Computer viruses are programs written by "mean" people. These virus programs are placed into a commonly used program so that program will run the attached virus program as it boots, therefore, it is said that the virus "infects" the executable file or program. Executable files include Macintosh "system files" [such as system extensions, INITs and control panels] and application programs [such as word processing programs and spreadsheet programs.] Viruses work the same ways in Windows or DOS machines by infecting zip or exe files.

A virus is inactive until you execute an infected program or application OR start your computer from a disk that has infected system files. Once a virus is active, it loads into your computer's memory and may save itself to your hard drive or copies itself to applications or system files on disks you use.

Keep sharing and reading
Thanks

[zenintsang]

A computer virus is a computer program that can copy itself and infect a computer. The term "virus" is also commonly but erroneously used to refer ...

[andyveer]

In simple terms a malicious program written to affect the normal functionality of your computer.