We have heard the term 'VIRUS' in the field of medical and computers. Most
people are aware that it is dangerous in both areas, but most people do not
really know the full form of VIRUS.
In this article, we are going to understand what the VIRUS full form is, what
a VIRUS is, its effect, types, symptoms, and more, in the field of
computers.
What You Will Learn
What is the full form of VIRUS?
The meaning or full form of VIRUS is ‘Vital Information Resources Under Seize’. A computer virus is a type of malicious program or a set of codes that
attacks computers to cause damage to them and their data. A virus can also
steal the user's information and send it to the attackers. Other related
dangerous software includes malware, adware, Trojans, spyware,
etc.
The full form of VIRUS can be explained as:
| V | Vital |
| I | Information |
| R | Resources |
| U | Under |
| S | Seize |
Let's talk about what the VIRUS is:
What is a Virus?
According to a definition, ‘Computer virus is a malicious code or a program
designed to change the way a computer system operates and is written in such a
way that it can spread from one computer to another by itself without the
user’s knowledge to operate malicious actions.’
In case the VIRUS succeeds to get into the computer or any other electronic
device, it tends to affect the data files, drives, software, or boot sector,
etc. There can be several ways that a virus can use to harm the devices or the
data stored in the devices. Viruses are created or developed by humans to gain
access to the private information of individuals, companies, or government
organizations. Such humans are called attackers or hackers.
Effects of Computer Virus
Attackers can use viruses to perform a variety of actions. Some of the most
critical effects performed using the viruses are listed below:
• Viruses can slow down computers by damaging the system files.
• Viruses can delete user data without the user's permission.
• Viruses can affect a boot system of a computer so that it does not
operate.
• Viruses can access stored data and transfer it to someone else.
• Viruses can gain access to social accounts stored on computers and
even automatically post irrelevant content on their behalf.
• Viruses can display many malicious advertisements or exaggerated
messages on a computer screen to attract users' attention. This, meanwhile,
helps to insert the virus into the computer.
Types of Computer Virus
There are many types of computer viruses and they affect computers in
different ways. We cannot really define how many types of computer viruses are
because they are constantly evolving with technology. Attackers are always
working to bypass security with new viruses to gain access to the user's
devices.
Some of the most important types of computer viruses are listed below:
• Boot Sector Virus
• Directory Virus
• FAT Virus
• Direct Action Virus
• Resident Virus
• Non-resident Virus
• Multipartite Virus
• Retrovirus
• Stealth Virus
• Spacefiller Virus
Check the complete list of computer viruses and their definition here:
Types of Computer Virus
Symptoms of a Computer Virus
Most viruses are designed with such a nature that they can replicate
themselves from one device to another. Besides, the Internet is the main
medium from which viruses can be automatically downloaded from malicious
websites to computers. Viruses can produce a variety of symptoms. Some of the
most common symptoms are:
• Computer becomes slow
• Frequent pop-up windows open automatically
• Unknown programs start with the windows start-up
• Unknown programs are running in the background
• Unusual activities like password changes or file deletion
• Frequent crashes even when the computer is idle
• Mass emails being sent from the attached email account on a computer
• Irrelevant status updates on connected social media accounts
How to protect a computer from viruses?
To protect a computer from viruses, it is best to use trusted antivirus
software and keep it updated with the latest virus definitions. Apart from
this, we should not open malicious websites or attachments that might come
with the emails. Also, programs should only be downloaded from the official
websites or trusted third-party sources.
Summary
VIRUS (stands for ‘Vital Information Resources Under Seize’) is a malicious
program designed by humans to access the sensitive data of any individual,
enterprise, or government organizations through their devices without
permission. Attackers use the retrieved information for their personal profit.
Viruses can be dangerous, and so it is recommended to use computer devices by
following the proper safety guidelines. Apart from this, good antivirus
software can be beneficial.
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