Prevention is the best cure for a Computer Virus
Prevention is the best cure for a Computer Virus
You're sick. You have a fever, chills, headache and so horrible that you can not think straight. No matter who claims to desperately need your help, you are not going to get out of bed. Your computer can suffer the very same - a virus. And, at worst may cause your computer to refuse to start.
The term "virus" in the computer world comes from exactly where you might think - the term used for diseases like the common cold. Like a biological virus, computer virus spreads by making and sending copies of itself to other computers.
A computer virus caused many problems in a computer and the infection occurs without the consent of the user. The copies of itself can be exactly like the original virus, or they might vary a bit. They usually spread over a network or the Internet.
Many people lump all malicious programs under the label "virus." However, a virus is quite different from a worm or Trojan horse. Unlike a virus, a worm can not spread on its own, it requires some user action, such as opening or running an infected file. A Trojan horse is a file that tricks performed by the user appear to be harmless.
Viruses cause problems for computer users by harming programs, reformatting the hard disk or deleting files. Although the vast majority of viruses are made for the purpose of doing harm, there are a few that are meant to be harmless jokes that only the video, audio or text messages. , Regardless of these viruses still use the memory without permission.
The fist virus was named "Elk Cloner" and it was made to run on the Apple DOS 3.3 operating system. It was created by a high school student named Richard Skrenta in 1982. It was a joke virus that was transmitted using a floppy disk with a game.
The drive can successfully open the game 49 times, on the 50th the virus was activated. It causes the screen to go blank and then read a poem: .. "It will get on all your disks It will infiltrate your chips Yes it's Cloner It'll stick like glue It will modify RAM too Send in! .. The Cloner!"
Brain was the first virus for the PC. It was designed in 1986 by brothers Basit and Amjad Farooq Alvi. Their goal in creating the virus is to protect legitimate software they had written from piracy.
In the early days of viruses, the usual method of infection was through some form of media that can benefit from the computer to move the computer such as a floppy disk. However, today, it is easier for viruses to be spread over the Internet or via computer, so most are meant to do.
Due to the popularity of the Windows platform, the majority of viruses are designed to weaknesses in the Windows operating system to use. But that's not to say there are no viruses that other operating systems. The truth is, no matter what operating system you are running, unless you take steps to prevent infections, your computer vulnerable.
There is a whole industry of antivirus software. The most common ways these anti-virus programs work are: 1) the detection of viruses using signature definitions, and 2) the detection of viruses using a heuristic algorithm that recognizes typical virus behavior.
A program that signature definitions are used depends on the user to the list of definitions up to date using updates and patches put the maker of the software. These are usually available at no cost with the purchase of the software or via a paid subscription to the software.
The algorithm method is able to detect viruses for which no signature exists.
Other ways of protecting your computer against viruses include backing up your data and operating system on media not stored on the hard disk of the computer. In this way, if your computer has become infected resulting in a loss of data or the inability to boot, you can restore your computer.
If your computer is infected, it is unwise to continue to use until the virus is removed by completely reinstalling the operating system. This is a time consuming process and often results in lost data. So, as with a virus in the human body, "an ounce of prevention is worth one pound cure." An anti-virus protection program is essential to the health of your computer.
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