FAQ: What Is Antivirus Pdf?

What is called Antivirus?

Antivirus software, or anti-virus software (abbreviated to AV software), also known as anti-malware, is a computer program used to prevent, detect, and remove malware. Antivirus software was originally developed to detect and remove computer viruses, hence the name.

What is Antivirus and its types?

Antivirus software is a type of program designed and developed to protect computers from malware like viruses, computer worms, spyware, botnets, rootkits, keyloggers and such. Antivirus programs function to scan, detect and remove viruses from your computer.

What is virus and antivirus in computer PDF?

• Virus: A program or piece of code that is. loaded onto your computer without your. knowledge and runs against your wishes. –Requires a human action to spread infection. –Can delete files, format hard disk, take up system resources that.

What is Virus in computer PDF?

2 DEFINITION OF COMPUTER VIRUSES A computer virus is a program file that is capable enough to. make its own code without the knowledge of the user by link- ing the file to the document. When the file or document that. run destroys others files also and spread to the computer.

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What is the best free antivirus 2020?

The Best Free Antivirus Software in 2021

  • Avast Free Antivirus.
  • AVG AntiVirus FREE.
  • Avira Antivirus.
  • Bitdefender Antivirus Free.
  • Kaspersky Security Cloud – Free.
  • Microsoft Defender Antivirus.
  • Sophos Home Free.

What is best antivirus software?

The best antivirus 2021 in full:

  • Kaspersky Anti-Virus.
  • Trend Micro Antivirus.
  • Avira antivirus.
  • Webroot SecureAnywhere AntiVirus.
  • Avast antivirus.
  • Sophos Home.
  • ESET Antivirus. Expert-level antivirus for the more experienced user.
  • McAfee antivirus. Well-featured antivirus suite that’s competitively priced.

How many types of antivirus are there?

3 types of antivirus scans and when to use them

  • Norton Antivirus.
  • McAfree Virus Scan Plus.
  • Trend Micro (“PC-Cillin”) Internet Security.
  • Bit Defender.
  • AVG Antivirus.

What are the 3 types of viruses?

List the types of viruses In biology. Based on their host, viruses can be classified into three types, namely, animal viruses, plant viruses, and bacteriophages.

Who is the father of viruses?

Martinus Beijerinck is often called the Father of Virology.

What are the types of virus?

  • Boot sector virus. This type of virus can take control when you start — or boot — your computer.
  • Web scripting virus. This type of virus exploits the code of web browsers and web pages.
  • Browser hijacker.
  • Resident virus.
  • Direct action virus.
  • Polymorphic virus.
  • File infector virus.
  • Multipartite virus.

What is Virus types of virus?

The main types of computer virus are as follows: Boot Sector Virus. Direct Action Virus. Multipartite Virus. Polymorphic Virus.

What is difference between virus and antivirus?

Virus is a computer program that has the ability of copying itself and infecting your computer. Antivirus is a computer software used in preventing, detecting and removing malware, like computer viruses, worms, spyware, Trojan horses, adware and spyware.

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What are the causes of virus in computer?

Some Common Sources of Computer Virus Infection

  • Downloading Programs. Programs that contains the downloadable files are the commonest source of malware such as freeware, worms, and other executable files.
  • Pirated or Cracked Software.
  • Email Attachments.
  • Internet.
  • Booting Data from Unknown CDs.
  • Bluetooth.
  • Unpatched Software.

How many types of computer viruses are there?

9 Common Types of Computer Viruses.

What are the types of antivirus software?

Best antivirus software of 2021

  • Bitdefender Antivirus Plus. Well rounded everyday antivirus protection.
  • Norton AntiVirus Plus. Smooth protection for your system.
  • Avira Antivirus Pro.
  • F-Secure Antivirus SAFE.
  • Kaspersky Anti-Virus.
  • Trend Micro Antivirus+ Security.
  • Webroot SecureAnywhere AntiVirus.
  • ESET NOD32 Antivirus.