<hypertext> A term coined by Ted Nelson around 1965 for a collection of documents (or "nodes") containing cross-references or "links" which, with the aid of an interactive browser program, allow the reader to move easily from one document to another. The extension of hypertext to include other media - sound, graphics, and video - has been termed "hypermedia", but is usually just called "hypertext", especially since the advent of the World-Wide Web and HTML. (2000-09-10)

Hypertext is text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access. Hypertext documents are interconnected by hyperlinks, which are typically activated by a mouse click, keypress set, or screen touch.

Hypertext, in semiotics, is a text which alludes to, derives from, or relates to an earlier work or hypotext. For example, James Joyce's Ulysses could be regarded as one of the many hypertexts deriving from Homer's Odyssey; Angela Carter's "The Tiger's Bride" can be considered a hypertext which relates to an earlier work, or hypotext, the original fairy-story Beauty and the Beast.

This article presents a timeline of hypertext technology, including "hypermedia" and related human–computer interaction projects and developments from 1945 on. The term hypertext is credited to the author and philosopher Ted Nelson.

<hypertext, World-Wide Web, standard> (HTML) A hypertext document format used on the World-Wide Web. HTML is built on top of SGML. "Tags" are embedded in the text. A tag consists of a " < ", a "directive" (in lower case), zero or more parameters and a " > ". Matched pairs of directives, like "<title>" and "</title>" are used to delimit text which is to appear in a special place or style. Links to other documents are in the form <a href="http://machine.edu/subdir/file.html">foo</a> where "<a>" and "</a>" delimit an "anchor", "href" introduces a hypertext reference, which is most often a {Uniform Resource Locator} (URL) (the string in double quotes in the example above). The link will be represented in the browser by the text "foo" (typically shown underlined and in a different colour). A certain place within an HTML document can be marked with a named anchor, e.g.: <a name="baz"> The "fragment identifier", "baz", can be used in an href by appending "#baz" to the document name. Other common tags include <p> for a new paragraph, <b>..</b> for bold text, <ul> for an unnumbered list, <pre> for preformated text, <h1>, <h2> .. <h6> for headings. HTML supports some standard SGML national characters and other non-ASCII characters through special {escape sequences}, e.g. "é" for a lower case 'e' with an acute accent. You can sometimes get away without the terminating semicolon but it's bad style. Most systems will ignore the case of tags and attributes but lower case should be used for compatibility with XHTML. The World-Wide Web Consortium (W3C) is the international standards body for HTML. Latest version: XHTML 1.0, as of 2000-09-10. http://w3.org/MarkUp/. {hypertext/WWW/MarkUp/ISOlat1.html">Character escape sequences (http://w3.org/hypertext/WWW/MarkUp/ISOlat1.html)}. See also weblint. (2006-01-19)

The Collaborative Hypertext of Radiology (or "CHORUS") is a free medical reference database based on a system originally developed at the University of Chicago and currently maintained at the Medical College of Wisconsin.

Secure Hypertext Transfer Protocol (S-HTTP) is an obsolete alternative to the HTTPS protocol for encrypting web communications carried over the Internet. It was developed by Eric Rescorla and Allan M.

<hypertext, standard, World-Wide Web> (XHTML) A reformulation of HTML 4.01 in XML. Being XML means that XHTML can be viewed, edited, and validated with standard XML tools. At the same time, it operates as well as or better than HTML 4 in existing HTML 4 conforming user agents. The most important change is that all elements must be terminated, either with a closing tag or using the <tag.../> shorthand. So, instead of <input type=submit> you would write <input type="submit" /> The space before the "/" is required by some older browsers. Other differences are that tag and attribute names should be lower case and all attributes should be quoted. XHTML Home (http://w3.org/TR/xhtml1/). {Quick Summary (http://technorealm.co.uk/design/html-to-xhtml-conversions.html)} Latest version: 1.0 Second Edition 2002-08-01, as of 2004-03-16. (2006-01-19)