What is Computer Virus

Virus is a program which intend to be made of a programer, it is target to smash system operation on the pc or notbook. And his copy its self and infect your pc and notbook without permission and knowledge of yours. And let check opinition with same as sentece “ what is virus”.

A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The term "virus" is also commonly used, albeit erroneously, to refer to many different types of malware and adware programs . ( Check )

A computer virus is simply a set of computer instructions or computer code that is written by some unscrupulous person. This code is attached to some part of the normal computer operating system or computer program. ( Check )

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. ( Check ).

May be you can found whats the meaning “ what is virus “ by google search or others. And you can know kind of virus if you know what is virus. Many different type of spyware, malware, and adware. And its can be infect to yours pc passed with flash and internet connection. So you must be carefully when you open internet on pc. And I hope you have to anti virus for protecting from virus attack.