A virus is a program that copies itself without the knowledge of the computer user. Typically, a virus spreads from one computer to another by adding itself to an existing piece of executable code so that it is executed when its host code is run.
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Generally, the first thing a virus does is attach itself to other executable files in such a way that the virus code is in effect when the infected files are run. Viruses may be written to multiply, to damage other programs, or to alter certain data. A computer virus is Term paper computer viruses more than a computer program that is coded to remain hidden in your computer.
The virus takes advantage of the operating system to copy itself onto other files or disks. When a new disk is inserted into an infected computer, the virus then copies itself onto files on that disk. The cycle continues as long as files are shared between computers.
Booting your computer with an infected floppy disk is one of the most common was of catching a virus.
If you need a custom term paper on Information Technology: Computer Viruses, you can hire a professional writer here to write you a high quality authentic essay. While free essays can be traced by Turnitin (plagiarism detection program), our custom written essays will pass any plagiarism test. Computer Viruses Essay - Definition of virus "Computer viruses" is the term that defines the class of programs which illegally explore resources of systems. - Definition of virus "Computer viruses" is the term that defines the class of programs which illegally explore resources of systems. It is an executable code able to reproduce itself. Viruses are an area of pure programming, and, unlike other computer programs, carry intellectual functions on protection from being found and destroyed.
Downloading a file from the Internet or an online service is another common way of catching a computer virus. Most reputable Internet sites and online services now scan all their files for viruses but that still does not guarantee that all their files will be virus free.
You can also catch computer viruses from E-mail attachments. While you can not catch a virus from simply reading an E-mail message, viruses can be spread through programs or office application files that may be sent as attachments to E-mails.
Always save and scan any E-mail attachment for viruses before opening the attachment. The most important thing you should do to protect your system and your data is to install a reputable anti-virus program on your computer.
There are many companies that currently provide this type of software and many of them offer free downloadable trial versions from their web sites.
All anti-virus software have different options or settings that you can select to optimize its scanning properties. Many anti-virus programs now also offer the ability to automatically scan any file you download from the Internet or any file that you may receive as an attachment to an E-mail.
In order for your anti-virus software to remain effective, you must update it regularly for the simple fact that there are new viruses being introduced at an alarming rate.
All anti-virus software companies offer regular updates to combat these new viruses. Some offer these updates free from the internet once you purchase their software, and some charge a fee for their updates.
This is something to consider as you shop around for your anti-virus software. Therefore, any anti-virus protection strategy should also include regular back-ups of your data. Here are some indications that you may have a computer virus. This is not to say that your computer has a virus if it displays one of these symptoms.
There may be some other problem causing the behaviour.A firewall is a network security system designed to prevent best digest writing services in nyc unauthorized access to or from a private plombier-nemours.comlls can be implemented as both term paper about computer viruses essay beginnings hardware and software, or a combination of merton thesis plombier-nemours.comk firewalls are frequently buy tok essay online used to prevent unauthorized Internet users.
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Excerpt from Term Paper: This report will hopefully pull together the research available with regard to this issue, and also identify what users are most at risk for virus attacks.