Software Computer viruses and spyware are some of the types of malicious software (malware) that propagate and affect computer users. What is a computer virus? A computer virus is the term coined for a malicious software program, which enters into a user’s system and copies itself into various files. The analogy is similar to that of a biological virus, which propagates by copying itself into living cells. Most viruses are intentionally destructive. They either destroy data, or the file system of the host they’ve infected. In the latter case, the destruction of the file system will often lead to a complete system crash. Business - List of business/finance/loan/mortgage resources more 1 2 3 4 5 Computers - List of computer hardware/software/peripheral resources more 1 2 3 4 5 Internet - List of webhosting/webdesign/internet marketing resources more 1 2 3 4 5 Software - List of software resources more 1 2 3 4 5 Web Design - List of web design/development resources more 1 2 3 4 5 Web Hosting - List of web hosting resources more 1 2 3 4 5 Web Promotion - List of search engine optimization/internet marketing resources more 1 2 3 4 5 Web Resources - List of other web resources more 1 2 3 4 5 Recreation - List of travel/hotel/cruise resources more 1 2 3 4 5 Casino - List of online gambling/poker/blackjack/roulette resources more 1 2 3 4 5 Health - List of online pharmacy/hospital/health resources more 1 2 3 4 5 Shopping - List of online shopping/gift resources more 1 2 3 4 5 Miscellaneous - List of all other resources not stated above more 1 2 3 4 5   Before the use of computer networks increased, viruses spread over removable media like floppy disks and ZIP disks. As the use of personal computers spread over homes, businesses and college campuses, bulletin boards began to spring into existence. Viruses were often loaded onto bulletin boards disguised as helpful software. Bulletin boards were responsible for the spread of Trojans. Viruses also spread through pirated copies of official software. Such a virus is written in the scripting language of that particular software and loaded on the bootleg CD. Today viruses spread mainly via the Internet, using email and Instant Messengers to infect networked computers. Basic Recognition of a JavaScript To get started with JavaScript, you will want to be able to see the tag that will set a script apart from the HTML. The tags used to begin and... onMouseover: Your first Script Well, its time to try out your first javascript. This one is nice because we don't have to deal with adding the script tag. Using Buttons for JavaScripts To write scripts using buttons, we will first need to know how to place a button on the page. To do this, you will need to use the.Windows Vista.