What is a Computer virus?

A bug may be a sort of computer virus that, when executed, replicates itself by modifying other computer programs and inserting its own code. If this replication succeeds, the affected areas are then said to be "infected" with a bug.

A computer virus is a malicious computer program that, when executed by an unsuspecting human, performs tasks that primarily include replicating itself and in some cases deploying a payload.

A decade or so ago, viruses were pretty simple. They got into a system and infected a file or two. It was a basic as ordering coffee when coffee was easy to order. “One coffee please black.”Today, the catalogue of viruses you've got to defend yourself against is frighteningly complex.

These days a discussion of a few viruses can actually occur without using the word virus because sometimes viruses are worms or Trojan horses, which are virus-like nasties that act a little different than their infectious cousins. Why are they called computer viruses?

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Well, because they need similar characteristics to biological viruses that infect humans in a minimum of a method. The computer variety jumps from computer to computer very similar to a chilly virus jumps from your kids to you and from you to your spouse.

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Don’t let all this frighten you, though. It’s not that tough to work out and defending your computer against viruses is pretty straightforward. Still, if the thought causes you to queasy, skip ahead to the part of the chapter about the way to easily protect yourself from viruses.

But I hope you stick around because the more you recognize, the geekier you'll be. Okay, not really. But understanding them makes them much less scary. Viruses were once among the primary real security threats people had to affect when personal computers started appearing in homes a couple of decades ago.

The first computer viruses were written within the 1980s; however, they really didn’t become an enormous threat until the late 1990s when everyone who owned a private computer started connecting to the web. Before then viruses spread via floppy disks or CDs

They would ride on the rear of files stored on a disk or within the boot area of the floppy and replicate when the disk was inserted into the computer. The Internet’s popularity has also become the chief reason that security on personal computers has become such a hot topic. A Net connection is that the off-ramp from the web into your computer for all data. And guess what? For viruses, it’s an express lane.

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How to Prevent Computer Viruses

Use Strong Passwords:

The use of 8 digits Alpha-Numeric Password with one special character in between is the most optimal password

Keep Everything up to Date:

All the system and software should be updated on monthly bases

Use a Firewall:
The use of a good firewall helps to prevent the foreign virus to enter the system

Use Antivirus Software:

The use of a good and trusted antivirus software helps to regularly scan for viruses and un-updated software

Beware of Email Phishing Scams:

Always try not to click on any un authorities link sent through mails

Educate Your Family & Staff:

Try to educated old family members who just use these electronics just for calling but still get caught in traps

Install a Popup Blocker:

Install a popup blocker. so that you may not be redirected to any other harmful site

What is a Computer virus? Types of Computer Virus | TechnoDaily