what is virus....???
A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computerviruses are man-made. A simple virus that can make a copy of itself over and over again is relatively easy to produce. Even such a simple virus is dangerous because it will quickly use all availablememory and bring the system to a halt. An even more dangerous type of virus is one capable of transmitting itself across networksand bypassing security systems.
Through the course of using the Internet and your computer, you may have come in contact with computer viruses. Many computer viruses are stopped before they can start infecting our computers, but there is still an ever growing concern as to what do computer viruses do and the list of common computer virus symptoms. A computer virus might corrupt or delete data on your computer, use your email program to spread itself to other computers, or even erase everything on your hard disk.
Computer viruses are often spread by attachments in email messages or instant messaging messages. That is why it is essential that you never open email attachments unless you know who it's from and you are expecting it.
Viruses can be disguised as attachments of funny images, greeting cards, or audio and video files.
Computer viruses also spread through downloads on the Internet. They can be hidden in illicit software or other files or programs you might download.
To avoid computer viruses, it's essential that you keep your computer updated with the latest updates and antivirus tools , stay informed about recent threats, run your computer as a standard user (not as administrator) , and that you follow a few basic rules when you surf the Internet, download files and open attachments.
Once a virus is in your computer, its type or the method it used to get there is not as important as removing it and preventing further infection.
Computer viruses are often spread by attachments in email messages or instant messaging messages. That is why it is essential that you never open email attachments unless you know who it's from and you are expecting it.
Viruses can be disguised as attachments of funny images, greeting cards, or audio and video files.
Computer viruses also spread through downloads on the Internet. They can be hidden in illicit software or other files or programs you might download.
To avoid computer viruses, it's essential that you keep your computer updated with the latest updates and antivirus tools , stay informed about recent threats, run your computer as a standard user (not as administrator) , and that you follow a few basic rules when you surf the Internet, download files and open attachments.
Once a virus is in your computer, its type or the method it used to get there is not as important as removing it and preventing further infection.