What is a computer virus?
Table of Contents
- What is a computer virus?
- Do you know the name of the first computer virus?
- What can a computer virus do?
- The reason for the virus to enter the computer
- Ways to prevent computer viruses
- How to deal with computer virus?
- Use a reliable antivirus program.
- Scan the full system with antivirus
- Remove malware
- Prevent future infections
What is a computer virus?
A computer virus is a computer program or file that infects a computer without the user's permission or awareness and spreads slowly throughout the computer. Other than that, it is very difficult to understand when and how a virus can enter any computer. Computer virus is a malicious program. It penetrates the computer through the internet, pen drive or any other means and spreads secretly, destroying important information of the computer, slows down the computer, deletes important files or does much more damage. A virus is a program that can copy itself and that is why it spreads easily from one computer to another.
Do you know the name of the first computer virus?
Creeper is the first computer virus! 3
In 1949, mathematician John von Neumann developed a theory called computer viruses and worms, a type of program that could automatically change computer programs. According to his theory, Creeper is considered to be the world's first computer virus.
The Creeper virus was created by an engineer named Bob Thomas of the BBN company and spread through a computer called the DEC PDP-10 in ARPANET.
He created the Creeper virus only experimentally. Only the message "Im the creeper: catch me if you can" was displayed on the creeper-infected computer, the creeper was not designed to do any harm. The world's first antivirus "The Ripper" was created based on this message from Creeper! The Reaper Antivirus also spreads throughout the system, identifying the Creeper virus and deleting it.
What can a computer virus do?
Symptoms of a computer virus infection are as follows:
- Slow down computer,
- Computer hang,
- Computer restart without reason,
- Different types of ads appear,
- Increased CPU usage of computer,
- Software installs automatically,
The reason for the virus to enter the computer?
Viruses can easily get into your computer or system for some basic reason. They are -
Through the Internet - If you use the Internet on your computer, viruses can enter your computer from many infected websites online. 80% of people's computer adware and malware, spyware viruses come to the system from the Internet.
(USB) From USB Device - We often copy many types of files from USB device such as pen drive, other mobile, hard disk to our computer. And, when copying these files, viruses get into our computer from other people's computers very easily and we don't even realize it.
From Email attachment - Many different types of emails come to our mail id every day. And, of course, viruses can get into these emails through file attachments.
Ways to prevent computer viruses
Using antivirus
There is no substitute for using antivirus software. Because there may not be caution every time. So if you put a free or paid antivirus software on the computer, it will continue to auto scan. It will work in an active way as soon as you install antivirus. You don't have to do anything. If not, you can take the time to scan.
What to do if infected with the virus
Many times PC PC virus is infected due to carelessness. Then the PC has to get rid of the virus before any problem occurs. For this you need to take your computer with Windows. If you can't afford Windows, you can get a good antivirus software. With which you will scan the whole computer. Then do a scan of your hard disk. Once your hard disk is virus free, monitor it regularly. Be careful.
Deleting programs:
Identify and uninstall programs that are harmful to the computer. If you have any doubts about any software, you need to know about that software through internet research. Harmful software must be removed from the computer's memory.
Reinstalling the operating system
The most effective way to free your computer from viruses is to reinstall the operating system. Re-installing the operating system by formatting the computer's memory protects it from any kind of virus.
Some important tips
Without the internet, life is useless now. On the other hand, there is a possibility of getting infected with computer virus by using internet So keep up with regular antivirus updates. Open the folder before using any pen drive or memory on the computer. If you open Direct, if there is a virus, it will attack your computer quickly and make your system bad.