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How Pc Enclosures Prevent Computers From Exploding
By Roberto Bell
With the integration of computers on the factory floor, more and more food manufacturers are not aware of the dangers they are putting their staff in. All food manufacturers have Health and Read more...
Three Steps To A Smooth Computer Memory Install
By Grant Eckert
When you‘ve decided that your computer needs more memory to work better for you, you might decide to save money by installing the memory yourself. This is a wise decision and in many cases, Read more...
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| A device that accepts information, processes it, and produces an output. A computer usually contains memory, a control unit, arithmetic and ...
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macintosh computers
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Computer Virus History
By temp
A virus is a self-replicating program written to alter the way a operates, without the permission or knowledge of the user.
Elk Cloner is credited with being the first virus to appear "in the wild" -- outside the single or lab where it was created. Written in 1982 by Rich Skrenta, it attached itself to the Apple DOS 3.3 operating system and spread by floppy disk. The first PC virus was a boot sector virus called (c)Brain, created in 1986 by two brothers, Basit and Amjad Farooq Alvi, Pakistan. The brothers reportedly created the virus to deter pirated copies of software they had written.
Before networks became widespread, most viruses spread on removable media, particularly floppy disks. In the early days of the personal computer, many users regularly exchanged information and programs on floppies. Some viruses spread by infecting programs stored on these disks, while others installed themselves into the disk boot sector.
Traditional viruses emerged in the 1980s, driven by the spread of personal computers and the resultant increase in BBS and modem use, and software sharing. Bulletin board driven software sharing contributed directly to the spread of Trojan horse programs, and viruses were written to infect popularly traded software. Shareware and bootleg software were equally common vectors for viruses on BBS's.
Since the mid-1990s, macro viruses have become common. Most of these viruses are written in the scripting languages for Microsoft programs such as Word and Excel. These viruses spread in Microsoft Office by infecting documents and spreadsheets. Since Word and Excel were also available for Mac OS, most of these viruses were able to spread
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on Macintosh computers as well.
A virus may also be transmitted through instant messaging. A virus may send a web address link as an instant message to all the contacts on an infected machine. If the recipient, thinking the link is from a friend (a trusted source) and follows the link to the website, the virus hosted at the site may be able to infect this new and continue propagating.
The newest species of the virus family is the cross-site scripting virus. The virus emerged from research and was academically demonstrated in 2005. This virus utilizes cross-site scripting vulnerabilities to propagate. Since 2005 there have been multiple instances of the cross-site scripting viruses in the wild, most notable sites affected have been MySpace and Yahoo.Article Source: http://www.ArticleJoe.com David is the webmaster of www.ArticleAware.com --- Collection of Free Articles. Great resource for webmasters who want to have fresh and useful content. Updates everyday!
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Computer Insurance
By Written by:
Joseph Kenny
While most articles are the same, it is very interesting to see how our readers are the most satisfied. I hope that you will be one of them.Investing in a personal computing Read more...
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Natural Disaster Causes 3% Of Data Loss
By parkoskar
Natural DisastersNatural Disasters is the least likely cause of data loss however they can kill an entire company. The eruption of natural disasters and the complete equipment Read more...
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