Page
A single document in a World Wide Website written using the HTML language.

Page title
A text string identifying a page.

Paragraph style
Paragraph style specifies the type of font to use in a paragraph, along with the font's size, and other attributes. Paragraph style also specifies whether to use bullets and numbering, and controls indentation and line spacing.

Password
A text string that allows a user access to an Internet service, if the service requires it.

Path
The portion of a URL that identifies the folders containing a file. For example, in the URL http://my.web.site/hello/world /greetings.htm, the path is /hello/world/.

PCT (Personal Communications Technology)
An enhanced version of Secure Socket Layer. See also SSL.

PCX
A file format that compresses its image data with RLE-type compression, used by early versions of Windows PaintBrush.

PDF (Portable Document Format)
Developed by Adobe, PDF is a file format that allows a document to be viewed on your screen in the same format as it would appear in print.

Plug-in
One of a set of software modules that integrate into Web browsers to offer a range of interactive and multimedia capabilities.

POP3 (Post Office Protocol 3)
An Internet email transfer protocol used to retrieve email messages.

Port
One of the network input/output channels of a computer running TCP/IP. In the World Wide Web, port usually refers to the port number a server is running on. A single computer can have many Web servers running on it, but only one server can be running on each port. The default port for World Wide Web servers is 80.

Properties
The settings and values that characterize an item on the web, such as the title and URL of a web, the file name and path of a file, or the name and initial value of a form field.

Protocol
A method of accessing a document or service over the Internet, such as File Transfer Protocol (FTP) or HyperText Transfer Protocol (HTTP). Also called type.

Proxy server
An Internet server that acts as a firewall, mediating traffic between a protected network and the Internet.

Push button
A form field that allows the user to submit a form or reset the form to its initial state.

Radio Button
A form field that presents the user with a selection that can be chosen by clicking on a button. Radio buttons are presented in a list, one of which is selected by default. Selecting a new member of the list deselects the currently selected item.

Registered User
A user of a Website with a recorded name and password.

Relative URL
The Internet address of a page or other World Wide Web resource with respect to the Internet address of the current page. A relative URL gives the path from the current location of the page to the location of the destination page or resource. A relative URL can optionally include a protocol. For example, the relative URL doc/sample.htm refers to the page sample.htm in the directory doc, below the current directory.

Root web
To access the root web, you supply the URL of the server without specifying a page name.

Row
In a table, a horizontal collection of cells.

RTF (Rich Text Format)
A method of encoding text formatting and document structure using the ASCII character set. By convention, RTF files have an RTF filename extension.