Netscape has defined a number of versions of JavaScript. Microsoft has released more-or-less compatible versions under the name "JScript," and the ECMA standards body has released three versions of a JavaScript standard named "ECMAScript". The following paragraphs describe these various versions, and explain how they relate to each other. Each entry in the reference section contains availability information that documents the version of JavaScript in which ....

When we think of Trojans, we normally think of the huge wooden horse that the Greeks gifted the city of Troy, in which they had secretly hidden a small number of their warriors. When the Trojans took the horse into the city the soldiers emerged and opened the gates to the cities enemies. Computer trojans are based on the same idea; what can appear to be useful program or harmless site can be hiding a small Trojan program that once it has infected your computer opens a secret b....

Whether it’s because you have made a call using a mobile phone, received a message on your pager, checked your email from a PDA or even just seen an advert related to it, we have all come across a wireless data or voice network!If a user, application or company wishes to make data portable, mobile and accessible then wireless networking is the answer. A wireless networking system would rid of the downtime you would normally have in a wired network due to cable problems. ....

Learning About ASP and Server-Side Programming This article describes what ASP and server-side technologies are. There is a brief tutorial that walks you through creating your first ASP pages. This article assumes that you are already comfortable with HTML and you’re interested in learning more about other Web technologies. ASP is a Web server scripting language from Microsoft used for embedding dynamic content into HTML Web pages. ASP stands for “Active Server Pag....

Log files track the activity on a computer so administrators can see who has used the computer, what they did, how long they stayed connected, and where they came from. Since a log file can also record the activity of an unauthorized intruder, much like a surveillance camera can record a burglar breaking into a store, hackers look for the log file as soon as they get access into the computer. Script kiddies often delete the log files to prevent the administrator from seeing ex....