A computer virus is a program designed to spread itself by first infecting excutable file or the system areas of hard disk and then making copies of itself. viruses usually operte without the knowledge or desire of the computer user.
In other word, virus is a program that has been written to cause problems on someone else's computer. viruses may cause data to be lost or corrupted. a virus is usually passed from computer to computer over telephone link. special anti-virus software can sometime be used to stop virus.
Virus is defined as a program inserted into another program. it gets activated by its host program. its replicates itself and spread to others through pen drive or hard drive transfer, mail and shared media. A virus infects data or program every time the user run the infected program and the virus takes advantages and replicates itself. Some viruses are c-Brain, Macmag sore casade, Jerusalem, Internet, Patch COM,
some of the common virus activities are here
1. Computer viruses infect executable program file such as word processing, spreadsheet, or operating system program. They do not run smoothly or frequently hang.
2.Viruses can also infect disk by attaching themselves to special program in areas of your disk called boot record and master boot records. these are the programs your computer uses to startup.
3. The computer may not boot and hang etc.
4. The size of file is changed.
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In other word, virus is a program that has been written to cause problems on someone else's computer. viruses may cause data to be lost or corrupted. a virus is usually passed from computer to computer over telephone link. special anti-virus software can sometime be used to stop virus.
Virus is defined as a program inserted into another program. it gets activated by its host program. its replicates itself and spread to others through pen drive or hard drive transfer, mail and shared media. A virus infects data or program every time the user run the infected program and the virus takes advantages and replicates itself. Some viruses are c-Brain, Macmag sore casade, Jerusalem, Internet, Patch COM,
some of the common virus activities are here
1. Computer viruses infect executable program file such as word processing, spreadsheet, or operating system program. They do not run smoothly or frequently hang.
2.Viruses can also infect disk by attaching themselves to special program in areas of your disk called boot record and master boot records. these are the programs your computer uses to startup.
3. The computer may not boot and hang etc.
4. The size of file is changed.
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