Answer Posted / vignesh1988i

virus are a set of programs which infects a system
(computer) and slows down it's efficiency.... all will have
virus... internet , DVD ,pen drives ,etc etc ... but
viruses are orginating from internet only. so when the
virus enters the system it will affect the microprocessor
and since it will act as an interrupt , this will be given
high prority. so the microprocessor will start functioning
as per the programs and so only our task will get
delayed.... so our system will not fuction according to our
OS programs... thus it affects the system performance



thank u

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