A computer virus is a type of malware that, once it infects a computer, can spread to other computers on the same network. It can also spread to other devices, such as smartphones, tablets, and even smart TVs.
Viruses are often spread through email attachments, infected websites, or file-sharing networks. They can also be installed through malicious software programs, which are often called “rogue antivirus” or “scareware.”
Once a virus has infected a computer, it can cause all sorts of problems, including:
– Making the computer run slowly
– Causing the computer to freeze or crash
– Making the computer display unwanted ads
– Redirecting web browsers to different websites
– Stealing personal information
– Infecting other devices on the same network
There are many different types of computer viruses, and they can be very difficult to remove. The best way to protect your computer from viruses is to install a good antivirus program and keep it up-to-date.
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What is computer virus explain?
What is a computer virus?
In computing, a computer virus is a type of malware that propagates by inserting itself into and executable file or document. Viruses can be spread through email, infected USB drives, or through the sharing of files on peer-to-peer networks.
Once a virus has been installed on a computer, it can execute its own code, often replicating itself in the process. Viruses can cause a range of problems for computer users, including data loss, system crashes, and even the theft of information.
How do computer viruses work?
Most computer viruses are written in a programming language known as assembly language. This low-level language is designed to be simple and easy to understand, making it the perfect choice for virus programmers.
When a computer virus is executed, it loads its code into the computer’s memory. From there, it can take a number of different actions, including:
– Replicating itself
– Damaging or deleting files
– Accessing confidential information
– Installing additional malware
How can computer users protect themselves from viruses?
There are a number of ways that computer users can protect themselves from viruses, including:
– Installing antivirus software and keeping it up to date
– Avoiding suspicious emails and websites
– Not opening attachments or clicking on links in emails from unknown sources
– Regularly backing up files
– Keeping software up to date
– Using strong passwords
What are the 3 types of viruses?
There are three types of viruses:
1. DNA viruses
2. RNA viruses
3. Retro viruses
DNA viruses are the largest and most complex of the three types of viruses. They are made up of DNA, the genetic material of cells. Some common DNA viruses include the herpes virus, the Epstein-Barr virus, and the human papillomavirus.
RNA viruses are also made up of genetic material, but it is RNA rather than DNA. The most common RNA viruses are the influenza virus, the rabies virus, and the HIV virus.
Retro viruses are a special type of RNA virus. They are made up of RNA, but they also have a protein coat that is made of DNA. The most common retro virus is the human immunodeficiency virus, or HIV.
Why is it called a computer virus?
The term “computer virus” is used to describe a type of malicious software program that is designed to infect and spread from one computer to another. These programs can cause a variety of problems for computer users, including loss of data, corruption of files, and even damage to the computer’s hardware.
While the term “virus” is often used to describe any type of malware, strictly speaking, a virus is a type of malware that is able to self-replicate. This means that the virus can copy itself and spread from one computer to another, without any help from the user.
Many different types of computer viruses are in existence, and new ones are being created all the time. Some of the more common viruses include the “I Love You” virus, the “Sasser” virus, and the “Conficker” virus.
So why is it called a computer virus? The term “virus” was actually first used to describe a type of biological virus, which is a type of infectious agent that can cause disease. The term was later applied to computer viruses, because of the similarities between the two. Just like a biological virus, a computer virus can spread and infect other computers, and can cause a lot of damage in the process.
What is virus in simple words?
A virus is a small, infectious agent that replicates inside living cells. It is too small to be seen with a normal microscope, and can only be identified through laboratory procedures.
Viruses are not technically alive, because they do not possess their own cells or DNA. However, they are able to replicate and spread, making them a major threat to human health.
There are many different types of viruses, which can cause a range of diseases, including the common cold, AIDS, and Ebola.
What is first computer virus?
The first computer virus was created by Dr. Fred Cohen in 1983. Cohen was a graduate student at the time, and he created the virus as a way to demonstrate the potential dangers of computer networks. The virus, called “The Jerusalem Virus” was a simple program that would copy itself from one computer to another.
Since then, computer viruses have become increasingly complex and dangerous. They can now delete files, steal information, and even take control of a computer system. Viruses are now a major threat to both individual computer users and businesses.
There are a number of ways to protect your computer from viruses, including using anti-virus software and keeping your system up to date with the latest security patches. It is also important to be vigilant about opening email attachments and clicking on links in suspicious emails.
If your computer does become infected with a virus, it is important to remove the virus as quickly as possible. There are a number of anti-virus programs available that can help you do this.
What are the top 5 computer viruses?
There are many computer viruses out there that can cause all sorts of issues for your computer. In this article, we will discuss the top 5 computer viruses and what you can do to protect yourself from them.
1. The first computer virus on our list is the ILOVEYOU virus. This virus was very widespread back in the early 2000s and caused a lot of damage. It usually arrives as an email attachment and, when opened, copies itself to the victim’s computer and sends copies of itself to all of the victim’s contacts.
2. The second virus on our list is the Conficker virus. This virus was first detected in 2008 and is still causing problems today. It is a worm virus that spreads through networks and infects removable media drives. It can also disable security features and download other malware.
3. The third virus on our list is the Sasser virus. This virus was first detected in 2004 and is still causing problems today. It is a worm virus that spreads through networks and infects removable media drives. It can also disable security features and download other malware.
4. The fourth virus on our list is the Mydoom virus. This virus was first detected in 2004 and is still causing problems today. It is a worm virus that spreads through email and can disable security features.
5. The fifth virus on our list is the Zeus virus. This virus is a Trojan virus that is used to steal information from unsuspecting victims. It is most commonly spread through email attachments, infected websites, and Trojan downloads.
So, what can you do to protect yourself from these computer viruses? Here are a few tips:
– Always be suspicious of email attachments and never open them if you don’t know the sender.
– Never visit unknown websites or download files from them.
– Install a good antivirus program and keep it up-to-date.
– Use strong passwords and change them often.
– Make sure your computer’s firewall is enabled.
– Back up your data regularly.
– Keep your operating system and software up-to-date.
Following these tips will help you protect your computer from the most common computer viruses.
What is the most common computer virus?
The most common computer virus is the one that is most widespread and affects the most users. There are many different types of computer viruses, but the most common one is the Trojan horse virus. This type of virus is named after the Trojan horse from Greek mythology. It is a type of malware that is disguised as something else, such as a file or program that appears to be harmless. However, when the user opens the file or runs the program, the virus is activated and begins to infect the computer.
