Don't use floppy disks as permanent storage for your backup files. The data inside them easily get damaged and won't last long enough to be useful as a back up.

Should You Have a Firewall?

As we have already discussed, the Internet is littered with evil intentions and malicious - albeit smart and brilliant - plotters. They are constantly in the prowl for innocent, unprotected computers. Internet hackers use all sorts of codes such as viruses, worms, and Trojans, to crack into and ruin your computer. You must therefore be prepared to block them off from ever entering your computer's system at all times.

It is often said that the best cure is prevention. And the saying applies to your computers. If you want to protect your computer from the threat of viruses, worms, Trojans, and other malicious code, one of the best options to take is setting up a firewall.

What is a Firewall?

Imagine a firewall to be the fence that sits between your computer and the Internet, or between your computer network and all the other computer networks out there.

It serves as a defense mechanism against harmful codes or data that may destroy your computer, and it works by examining the information that attempts to enter your computer or your network.

When a firewall is set up properly, hackers will not be able to detect your computer in their search for vulnerable ones to victimize.

What are the Types of Firewalls?

Firewalls are generally divided into three categories: software firewalls, hardware routers, and wireless routers. To know which kind of firewall is suitable for your needs, there are two factors on which your decision should depend on:

1. The number of computers that your firewall will service

2. The kind of operating system that you use (it can be Linux, a version of Windows, Apple Macintosh, and so on).

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