Unlock Toolbars

The new Windows XP now features locking toolbars, and you can adjust them. You may customize a lot of the Windows XP features such as the Taskbar, Start Menu, and even toolbar icons in Internet Explorer and Outlook Express. Remember your right-click:

* Right-click on a toolbar, and then click Lock the Toolbars to remove the check mark.
* Right-click on the toolbar again, and then click Customize.

You may add or remove toolbar buttons, change text options and icon options. When you've got the toolbar customized, click Close. Now right-click on the toolbar and then click Lock the Toolbars to lock them in place. com

Computer Virus

Graphical user interface

A graphical user interface (GUI) is a type of user interface which allows people to interact with electronic devices such as computers; hand-held devices such as MP3 Players, Portable Media Players or Gaming devices; household appliances and office equipment. A GUI offers graphical icons, and visual indicators, as opposed to text-based interfaces, typed command labels or text navigation to fully represent the information and actions available to a user. The actions are usually performed through direct manipulation of the graphical elements.

The term GUI is historically restricted to the scope of two-dimensional display screens with display resolutions capable of describing generic information, in the tradition of the computer science research at Palo Alto Research Center (PARC). The term GUI earlier might have been applicable to other high-resolution types of interfaces that are non-generic, such as videogames, or not restricted to flat screens, like volumetric displays.

Data mining

Data mining is the process of extracting hidden patterns from data. As more data is gathered, with the amount of data doubling every three years,data mining is becoming an increasingly important tool to transform this data into information. It is commonly used in a wide range of profiling practices, such as marketing, surveillance, fraud detection and scientific discovery. Data mining can be applied to data sets of any size. However, while it can be used to uncover hidden patterns in data that have been collected, obviously it can neither uncover patterns which are not already present in the data, nor can it uncover patterns in data that have not been collected.

Data mining commonly involves four classes of task:

* Classification - Arranges the data into predefined groups. For example an email program might attempt to classify an email as legitimate or spam. Common algorithms include Nearest neighbor, Naive Bayes classifier and Neural network.
* Clustering - Is like classification but the groups are not predefined, so the algorithm will try to group similar items together.
* Regression - Attempts to find a function which models the data with the least error. A common method is to use Genetic Programming.

Data casting

Data casting (data broadcasting) is the broadcasting of data over a wide area via radio waves. It most often refers to supplemental information sent by television stations along with digital television, but may also be applied to digital signals on analog TV or radio. It generally does not apply to data which is inherent to the medium, such as PSIP data which defines virtual channels for DTV or direct broadcast satellite systems; or to things like cable modem or satellite modem, which use a completely separate channel for data.

Data casting often provides news, weather, traffic, stock market, and other information which may or may not relate to the program[s] it is carried with. It may also be interactive, such as gaming, shopping, or education. An electronic program guide is usually included, although this stretches the definition somewhat, as this is often considered inherent to the digital broadcast standard.

The ATSC, DVB and ISDB standards allow for broadband data casting via DTV, though they do not necessarily define how. The over scan and VBI are used for analog TV, for moderate and low bandwidths (including closed captioning in the VBI) respectively. Direct Band and RDS/RBDS are medium and narrow sub carriers used for analog FM radio. The EUREKA 147 and HD Radio standards both allow for data casting on digital radio, defining a few basics but also allowing for later expansion.

Information Graphics

Information graphics or info graphics are visual representations of information, data or knowledge. These graphics are used where complex information needs to be explained quickly and clearly, such as in signs, maps, journalism, technical writing, and education. They are also used extensively as tools by computer scientists, mathematicians, and statisticians to ease the process of developing and communicating conceptual information.

Today information graphics surround us in the media, in published works both pedestrian and scientific, in road signs and manuals. They illustrate information that would be unwieldy in text form, and act as visual shorthand for everyday concepts such as stop and go.

In newspapers, info graphics are commonly used to show the weather, as well as maps and site plans for newsworthy events, and graphs for statistical data. Some books are almost entirely made up of information graphics, such as David Macaulay's The Way Things Work. Although they are used heavily in children's books, they are also common in scientific literature, where they illustrate physical systems, especially ones that cannot be photographed (such as cutaway diagrams, astronomical diagrams, and images of microscopic or sub-microscopic systems).