(1) What is a virus?
Ans. Computer virus is
a small program, which infects the computer by corrupting the files, and uses
the computers memory with out our knowledge.
(2) What is the use of UPS?
Ans. In the case of
power failure, an UPS can supply power for some more time allowing you to
safely shutdown the computer.
(3) Name some of
the antivirus programs?
Ans. Norton, AVG, IBM
and Quick Heal.
(4) How does virus
affect the computer?
Ans. Virus enters the
computer while surfing the net or through e-mails, as well as through infected
floppies, CD’s and pen drives.