What is a Computer Virus?
How you know when your Computer is
Since the invention of computers, people have been wondering: What is a
computer virus? A computer virus is a malicious coded program that spreads from one infected
computer to another well-functioning machine. It interferes with the way a computer carries
out its operations.
It might make it slow or act on its own. Several
instances of an application program appear without being opened. It also corrupts all the data
and information stored on the computer hard disk. This results in to a complete crash if fast
measures are not taken. A computer operates by use of instructions known as Operating
This is stored in the hard disk of a computer. Once the set of instructions is corrupted a
computer ceases to work normally. If you experience a problem where you switch on the machine and it fails to
start, your computer might be affected by a virus or a number of viruses.
What is a computer virus? How do you detect its existence? An infected computer does not respond to instructions and “hangs” often. It also closes down
frequently and restarts on its own. It is always annoying as it runs abnormally. Have you ever failed to see a
removable disk after you had plugged it well on the computer? A
computer virus makes the disk drives inaccessible. It also makes application programs to disappear
If your antivirus was activated but all over a sudden it is disabled, your
computer might be infected by a virus. Other symptoms to look out for include: ; unusual sounds from the speakers,
printing or scanning becomes a problem, strange error messages, out of structure dialogue boxes and menus, strange
desktop icons, double extensions on computer files you have opened, failure to install an antivirus program, etc.
If you see some of these signs, you better find a solution.
It is important to note that these signs might also be as a result of
hardware or software failure. You can never be too sure until you clean your computer with a trustworthy antivirus
What can you do to prevent a
After finding the answers to the question, what is a computer virus? What do
you do next? It depends on how your computer is working. If you are suspecting that your computer is infected, the
best cure and preventive measure is to install an anti-virus program. Not all of these programs are effective
though.Therefore, it is important to obtain an up-to-date, tried and approved antivirus software. It has been
proved that there are some anti-viruses that cannot detect certain viruses.
It is therefore wise to know the name of the virus infecting your computer.
If your computer is already infected, the best thing is to contact a computer professional to ‘clean’ it for you.
The professionals have different anti-virus software and can therefore do a thorough virus healing job.
How does a computer virus spread? Most computer viruses
spread through the Internet. E-mailing has become a common mode of communication. It is through the attachments on
the e-mail that computer viruses spread. To be on the safer side, avoid opening unknown e-mail attachments. They
are disguised as very interesting files but you should overcome the temptation all the same. They appear as audio
or video entertainment files which probe you to open. Love letters, greeting cards and warning messages are some of
the files on the face value.
Now that you know the answer to the question: What is a computer virus? Avoid
downloading software from any non-trustworthy source. This is because computer viruses can be attached in such
downloads. To prevent your computer from viruses, always be informed. Always!