What is Computer Virus? Write the Symptoms of virus in the system:
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A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and changes how a computer works. The virus requires someone to knowingly or unknowingly spread the infection without the knowledge or permission of a user or system administrator.
symptoms:
1)Unexpected pop-up windows. 2)Unexpected onscreen ads are a typical sign of a virus infection.
3)Slow start up and slow performance.
4)Suspicious hard drive activity.
5)Lack of storage space.
6)Missing files.
7)Crashes and error messages.
8)High network activity.
symptoms:
1)Unexpected pop-up windows. 2)Unexpected onscreen ads are a typical sign of a virus infection.
3)Slow start up and slow performance.
4)Suspicious hard drive activity.
5)Lack of storage space.
6)Missing files.
7)Crashes and error messages.
8)High network activity.
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Answer:
A computer virus is nothing but a program that can duplicate itself and spread from a computer to another. The term "virus" used to refer to other types of malware which includes adware and spyware type of program. But it lacks in reproduction ability. They can explode security variables and spread through the computer.
Slow down the computer, making lots of unnecessary files or empty folders, and even causes various unusual activities automatically, and this is really painful stuff.
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