Computer Viruses can be enormously damaging to the computer and to the data in the computer. They are far from harmless.
A harmless computer virus is really, just a virus that can not do any harm to your computer. It cannot access any files in your computer an cannot activate anything. All it really does is just sit there.
The infect your computer by being undetected by your anti virus and posing as a harmless file.
Tobacco mosaic virus and wheat streak virus are harmless to humans.
Virus can spread by many way, depends on the hacker who made it. Some virus will infect your computer immediately when you visit a website. But some are harmless until you click on file which was infected. There are many type of virus nowadays: trojan, macro, rootkit,....you can find more information on norton, kaspersky site.
A pop up is a virus that puts a window up on the screen. Most are harmless, while the more devastating "Are You Gay" pop up can destroy your computer.
Three computer viruses are ping-pong, acid and 1260. Ping-pong is considered as a harmless virus. It does not affect most computers in a negative way.
worms
Yes, to get rid of a virus, another virus must take its place. Fortunately the new virus is mostly harmless.
Every computer could have a virus but if you use your computer carefully it can be impossible for the virus to come to your computer.
Virus-L and computer virus are discussions forums which focus on computer virus issues
Scanning virus only help to find the virus inside your computer disks, but do no other actions, virus is still in your computer. But Removing virus not only find it, but also remove the virus from your computer. Thus no such virus will remain in your computer after that.
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