There are many commercially available XML Servers in market. The popular among them are Tamino Server, Sonic Server and FDX XML Server. Though basic functions of these servers are same way they are implemented and features that they support varies.

The Tamino XML Server is from Software AG and is used to publish and exchange all kinds of data especially XML documents in native format. It handles open standards. Leveraging on XML technologies will improve an organizations data access.

Exchange of data between different applications on different platforms is possible using XML technologies. Hence organizations are moving on to store their data in XML format to take advantage of XML technologies. Storing data in XML format improves performance of delivery and scalability of your applications with low operational and administrative costs.

In traditional relational databases, data is stored in rows and columns which can be too complex. But in case of an XML Server such complexity is avoided and any data can be stored which includes even multimedia files and even relational data. These data can be easily retrieved at lightning speed using a Tamino XML Server.

To retrieve data that is requested by any application, XQuery is used in Tamino XML Server. This server implements XQuery specification draft. Hence queries on server can be issued using internet and data can be returned in any format by using XSL style sheets. Thus customers can manipulate format of presentation of data that is presented using style sheets. High speed retrieval of data is possible in XML Server.

The Tamino XML Server is robust, reliable, and scalable. It is used in mission critical environments and there is almost no failure and loss of data. It is reliable in sense it supports backup of data that can be stored in external devices or remote devices and used in clustered environments. The number of users can be increased and load on server can also be increased.

Once they were only for rich and were only fitted in very high end cars but today SatNav systems are available to all. You can either opt for in-car fitted systems that are still quite expensive or you can go for handheld or protable units. This article is about latter.

What is SatNav?

SatNav is a system that comprises of 2 elements, a GPS data receiver and a CPU/display unit. The receiver gets information from orbiting GPS navigational satellites and communicates it to CPU/display unit. This unit is then able to find its exact location on planet by comparing signals from various satellites.

The unit incorporates road maps of area and places an indicator on map showing where car is on maps.

Features The units allow you to plan a journey ahead of time and then unit will guide you to you destination by displaying a map showing you where you are and direction you should be heading. Most now have voice instructions so unit will tell you, when you are approaching a junction, which turning you should take. The units are also capable of making real time adjustments to route, this means that if you go wrong way until will recalculate route to your destination taking into account wrong turning you have just made.

Maps The maps for unit can be loaded for different regions you visit, so they may have a map of UK and another for France and so on. Most modern unit have maps stored on a removable memory cards like SD cards or similar memory card but some units read directly from a CD or DVD. The display can be set to show conventional flat map view or new 3D view that shows a view as if it was above you and looking forward. This view is very good and clear.

Traffic Some units offer systems that will warn you of road works/traffic jams etc as they happen, and offer suggestion as to how to avoid them.