The Differences Between Hubs, Switches and Routers

Some technicians have a tendency to use the terms routers, hubs and switches interchangeably. One minute they're talking about a switch. Two minutes later they're discussing router settings. Throughout all of this, though, they're still looking at only the one box. Ever wonder what the difference is among these boxes? The functions of the three devices are all quite different from one another, even if at times they are all integrated into a single device. Which one do you use when? Let's take a look...Hub, Switches, and Routers: Getting Started with DefinitionsHubA common connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports. When a packet arrives at one port, it is copied to the other ports so that all segments of the...

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Introduction to Microsoft Access

Microsoft Access LaunchingIntroductionMicrosoft Access is a computer application used to create and manage computer-based databases on desktop computers and/or on connected computers (a network). Microsoft Access can be used for personal information management (PIM), in a small business to organize and manage all data, or in an enterprise to communicate with servers.Like any other computer application, in order to use Microsoft Access, you must first open it. There are various ways this can be done. Microsoft Access is a classic computer application and it gets launched like the usual products you have probably been using. As such, to start this...

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Forex Tutorial - A Short Introduction To FOREX

FOREX is the world’s largest and most liquid trading market. Many consider FOREX as the best home business you can ever venture in. Even though regular people have had the opportunity to take part in trading foreign currencies for profit (in the same way banks and large corporations do) since 1998, it is just now becoming the cool, hip, new "thing" to talk about at parties, business events, and other social gatherings.Even though it has been somewhat of a loosely guarded secret, every day more and more investors are turning to the all-electronic world of FOREX trading for income and profit because of its numerous benefits & advantages over traditional trading vehicles, like stocks, bonds and commodities.But, still, whenever something seems new or is just becoming a part of social conversation,...

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.NET Framework

The Microsoft .NET Framework is a software component that is a part of Microsoft Windows operating systems. It provides a large body of pre-coded solutions to common program requirements, and manages the execution of programs written specifically for the framework. The .NET Framework is a key Microsoft offering, and is intended to be used by most new applications created for the Windows platform.The pre-coded solutions that form the framework's Base Class Library cover a large range of programming needs in areas including: user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. The class library is used by programmers who combine it with their own code to produce applications.Programs written for the .NET...

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New Video Tutorial on ActionScript 3 Sound

just finished uploading a new tutorial to gotoAndLearn() which shows you the basics of how to play and manage sound in ActionScript 3. There has been considerable changes to the sound APIs and this I go over all of the changes in this tutorial. I start with showing how to use library sounds in Flash CS3 and then move on to loading and playing external sound files. I plan on doing a later tutorial that delves into the mysterious world of the SoundMixer.computeSpectrum() method.Enjoy the tutorial!...

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Servlet, JSP, and JDBC Tutorials

Beginning and Intermediate-Level Servlet, JSP, and JDBC TutorialsFrom 2nd Edition of Core Servlets and JSP (Volume 1)The beginning and intermediate-level tutorials on this page are based on the second edition of Marty's book Core Servlets and JavaServer Pages, and have been tested by Marty in live training courses in the US, Canada, Australia, Puerto Rico, Japan, Mexico, and the Philippines. Also see the training materials home page for advanced servlet and JSP tutorials, Jakarta Struts tutorials, Apache Tomcat tutorials, JSF tutorials, Java 5 & Java 6 tutorials, and tutorials in Chinese and Japanese.The PDF versions of the tutorials are freely available to anyone for personal use. These versions contain the complete text of the PowerPoint slides, and are what you want if your goal is...

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What Is Debug?

Debug provides non-privileged and privileged users with both interactive and programmatic debugging facilities for examining their operating environments.Debug enables you to do the following:Set, delete, and list breakpoints in a program. The program executes until a breakpoint is reached, then stops and passes control to the user. When you set breakpoints, you can specify a list of commands that automatically are executed when the breakpoint is hit.Single step (multiple steps) through a program.Display and/or modify the contents of memory locations. A full set of addressing modes is offered, including absolute CM memory, code segment relative, data segment relative, S relative, Q relative, DB relative, HP Precision Architecture virtual addresses, and HP Precision Architecture real memory...

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XML Articles and Tutorials

Within the XML section below you'll find helpful annotated links to articles, tutorials, reference charts, XML editors and syntax checkers, and more related to XML. You'll also find a listing of recommended books on XML.Do you know of some good XML tutorials, articles, XML references, software, books, or resources related to XML?Recommendations are welcome and encouraged! On this page:Articles and Tutorials on XML in GeneralDOM and XML Articles and TutorialsXML Information Set Articles and TutorialsXML Linking Articles and TutorialsXML Namespaces Articles and TutorialsXML and RSS Articles and TutorialsXML and Styles Articles and TutorialsAlso within XML:XML HomeSection 1: W3C XML Recommendations, Information, and TutorialsSection 3: XML Sites, Resources, and BooksSection 4: XML Tools - Editors,...

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