Virus symptoms and its preventions

The word virus has become a part of computer terminology. Nowadays, every person who is acquainted with computer is also familiar with virus. Virus stands Vital Information Resource Under Siege. Like ordinary virus, which hampers the normal functioning of our body, the computer virus disturbs the proper functioning of the computer system. Most of the computer viruses are written in assembly language. Virus programs are usually as small as possible so that it can hide in a small place. When a virus attacks a computer system, it results in frequent hanging of the system, it decrease the main memory, causing problems when executing large programs. It causes partial destruction of the root directory which results in deletion of file or a number of files from the diskette. A computer virus slower the speed of the system, it is due to increase in the time taken to access floppy diskette or due to virus executing itself between the program. There are few computer viruses that show some strange message patterns on the screen. It is always advisable to take certain precautions so as to prevent our systems from virus. Never allow floppy disks, pen drives brought from outside your company to be used directly on PC without checking the floppy for virus presence. Avoid playing computer games on a computer where important data is stored as it is generally noticed that the virus spreads faster through game floppies. If virus is found on a PC, isolate it, identify and remove the virus. Only then should be PC being put into use again.

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