Deprecated code is code that is no longer included in the language specifications. Generally this happens because it is replaced with more accessible or efficient alternatives.
A database edited manually by Humans. Sites are indexed by category making this feature the main difference to a Search Engine. Users can navigate through the categories to locate documents or information. Most directories offer searching options (which is similar to searching from a Search Engine) within its database.
In GIF and certain other image formats, there is a limited color palette used for each image. Because of this, not all colors in an image are presented. Dither is used to approximate these colors by combining pixels of different colors side by side.
Stands for Domain Name Service (alternately Domain Name System or Domain Name Server). Basically, it’s the thing that converts IP addresses into domain names. DNS servers are provided with the IP address of your web server when you assign your domain name to those servers. In turn, when someone types your domain name into their web browser, those DNS servers translate the domain name to the IP address and point the browser to the correct web server.
The doctype declaration specifies which version of HTML is used in a document. It has a direct effect on whether your HTML will validate.
Stands for Document Object Model. It’s a language-indpendent, cross-platform convention for representing objects in XML, XHTML, and HTML documents. Rules for interacting with and programming the DOM are specified in the DOM API.
An unique name that identifies one or more IP addresses. Domain names are used in URLs' to identify particular Web sites. Every web site is located by its unique IP address.
A drop-down menu (also known as a pull-down menu) is a navigation menu that “drops down” when you click it with a mouse or roll the mouse over it.
Dropbox is the easiest way to store, sync, and, share files online. There’s no complicated interface to learn. Dropbox works seamlessly with your operating system and automatically makes sure your files are up-to-date.
Stands for Document Type Definition. DTD is one of several SGML and XML schema languages. It provides a list of the attributes, comments, elements, entities, and notes in a document along with their relationships to each other.
An IP address (assigned by an ISP to a client PC) that changes periodically.