What is the Full Form of VIRUS?

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VIRUS Full Form is Vital Information Resources Under Siege. A computer virus is a computer program that can replicate itself and spread from one computer to another without your knowledge and runs against your wishes. Virus has a property to replicate itself and spread itself from one computer to another computer. It can affect the data files, boot sector of hard drive etc. when its replication succeeds. The affected area is said infected and Software virus is also known as computer virus. You can't find where is software virus because a computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The original may modify the copies or the copies may modify themselves, as occurs in a metamorphic virus. A virus can only spread from one computer to another when its host is taken to the uninfected computer, for instance by a user sending it over a network or carrying it on a removable medium such as a floppy disk, CD, or USB drive. Additionally, viruses can spread to other computers by infecting files on a network file system or a file system that is accessed by another computer.
Most viruses spread on removable media, particularly floppy disks. In the early days of the personal computer, many users regularly exchanged information and programs on floppies. Some viruses spread by infecting programs stored on these disks, while others installed themselves into the disk boot sector, ensuring that they would be run when the user booted the computer from the disk, usually inadvertently. PCs of the era would attempt to boot first from a floppy if one had been left in the drive. This was the most successful infection strategy until floppy disks fell from favour, making boot sector viruses the most common in the wild.
Computer virus is a serious concern to computer engineers as well as consumers. There are many aspects of computer virus which must be known to people because they affect a vital object of your life, computer. This article will deal with ten points of information about the computer virus that everyone must know. For examples:   A virus program contains instructions to initiate some sort of "event" that affects the infected computer. Each virus has an unique event associated with it. These events and their effects can range from harmless to devastating.

 Types of  Viruses:
  •  Boot sector viruses
  • Program viruses
  • Multipartite viruses 
  • Stealth viruses
  • Macro viruses
  • Polymorphic viruses
  • Active X viruses
  • Browser hijacker
  • Resident viruses
 Virus is actually a Malware like other
  • Computer Worms
  • Trojan horse
  • Spam virus
  • Spyware
  • Zombies  

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