There are different types of computer viruses, depending on the nature of the executable program and what the rogue programs actually do when they begin infecting a host system.
Differentiating viruses and spyware
Technically, spyware, malware and adware are not types of computer viruses. There is often confusion here; most users call all undesirable programs viruses. However, for the sake of technical clarity, we must correct this.
Computer viruses, like their biological counterparts, are known for their self-replicating capabilities. This means the virus can spread from one system (a system is your personal computer, laptop, etc.) to other systems.
Back in the nineties, MS-DOS viruses and BIOS-infecting viruses often spread from unchecked floppy disks that passed from one user to another (and consequentially, one computer to another).
Many of these viruses wiped out vital documents and other system files. Some of these MS-DOS viruses were considered as "joke viruses" because … Read More