Computer Virus
https://www.computersprofessor.com/2016/05/computer-virus.html
Virus is software which enters into
the computer and attacks other programs are soft ware with a view to damage
them. A computer is a program which is written intentionally by some person
with a view to damage the data among program and peripherals. As a result the
computer behaves in a strange way.
Characteristics of Virus:-
When a virus is infected to a computer
one or more of the following features may exist.
®Computer may not boot
® A program may not work properly or
take a time to load.
® The disc space, files sizes may be
effected
® New massage maybe displayed on the
screen.
® File name may be displayed on the
screen
® File name may have new character
® The virus may spread from one
computer to another computer through network.
Virus Protection:-
Protection to prevent virus:
® Do not use illegal or pirated
software
® Do not connect your system with an
effected service in LAN
® Do not download program unless you
confirmed that they are reliable web sites.
® Do not open email attachment from
unknown senders.
The antivirus searches the system for
any virus. There are many famous antivirus available in the market.
Eg: Norton PC, Avesta
etc.
It
is always advisable to install an effective anti virus software. One anti virus
software cannot catch all viruses. So it is better to use two or more latest
anti-virus software.