hypertext link Concepts

Broad Band: The Untold Story of the Women Who Made the Internet

by Claire L. Evans · 6 Mar 2018 · 371pp · 93,570 words

how we navigate the Web—Google built its empire on a search engine that brought up Web pages with the highest number and quality of hypertext links—but how we communicate with one another, and ultimately how we understand the world. In a way, it’s fundamental. The Talmud is a hypertext

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ourselves debating the relative merits. The software emulated “the way you wrote papers when you were in junior high: with notecards and file boxes.” Using hypertext links, users could chain their cards into complex collections, sequences, and mental maps, modeling their thought processes and making it easier for others to understand their

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a few interactive art disks for Commodore Amiga. But Jaime’s disks, packaged on floppy, were accessible to anyone with a Mac, and with their hypertext links and interactive animations, they were exactly like Web sites—long before the Web existed. Although she had a day job as a typesetter, she distributed

Intertwingled: The Work and Influence of Ted Nelson (History of Computing)

by Douglas R. Dechow · 2 Jul 2015 · 223pp · 52,808 words

feature of Microcosm. Ted said we should have called them something other than links, as a generic link didn’t fit his definition of a hypertext link, but by the time Ted saw Microcosm it was too late to change the naming of the links. Microcosm was an open hypermedia system in

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: problems we are still dealing with as the Semantic Web develops today. We did also have specific links in Microcosm that were more like standard hypertext links because they were embedded in the documents and represented to the user through highlighted buttons, and you could trace them backwards though the link database

Memory Machines: The Evolution of Hypertext

by Belinda Barnet · 14 Jul 2013 · 193pp · 19,478 words

area (signified by an asterisk) to an entrance point in another, or the same, area. The HES team used Ted Nelson’s concept of a hypertext link (though from Nelson’s perspective they ‘flattened’ this by making the jumps one-way). Doug Engelbart was incorporating the same idea into NLS independently. ‘I

Bootstrapping: Douglas Engelbart, Coevolution, and the Origins of Personal Computing (Writing Science)

by Thierry Bardini · 1 Dec 2000

al. (1970), p. 137. in Bateson's formulation of what you see when you look at your hand. And the result was the invention of hypertext, linked relations between texts. A "text" (or a "file") simply is any structured set of character strings (or "statements"). All text handled in NLS was in

This Is for Everyone: The Captivating Memoir From the Inventor of the World Wide Web

by Tim Berners-Lee · 8 Sep 2025 · 347pp · 100,038 words

takes an ordinary document – like a technical manual, or a diary entry – and brings it to life by adding ‘links’. My idea was that these hypertext links could provide a simple way for users to navigate the internet. This kind of decentralized structure could have a network effect on creativity: new trends

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seemed limited only by imagination. The more links you made, the better it would become. The more it grew, the better it functioned. By layering hypertext links onto the internet, we could connect scientists and artists and citizens all over the world. I started to talk about the ‘two Cs’ – creativity and

The Invisible Web: Uncovering Information Sources Search Engines Can't See

by Gary Price, Chris Sherman and Danny Sullivan · 2 Jan 2003 · 481pp · 121,669 words

. The Web made it easy to retrieve a wide variety of files, including text, images, audio, and video by the simple mechanism of clicking a hypertext link. 1 2 The Invisible Web DEFINITION Hypertext A system that allows computerized objects (text, images, sounds, etc.) to be linked together. A

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hypertext link points to a specific object, or a specific place with a text; clicking the link opens the file associated with the object. The primary focus

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the world. Next, he created the HyperText Transfer Protocol (HTTP), the set of rules that computers would use to communicate over the Internet and allow hypertext links to automatically retrieve documents regardless of their location. He also devised the Universal Resource Identifier, a standard way of giving documents on the Internet a

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finding information on the Web: browsing and searching. Browsing is the process of following a hypertext trail of links created by other Web users. A hypertext link is a pointer to another document, image, or other object on the Web. The words making up the link are the title or description of

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form of a hierarchical graph, with generic top-level categories leading to increasingly more specific subcategories as the user drills down the hierarchy by clicking hypertext links. Ultimately, at the bottom-most node for a branch of the hierarchical graph, the user is presented with a list of document titles hand-selected

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that crawlers can use to discover pages—one that’s more easy to control. This second method of Web page discovery takes advantage of the hypertext links embedded in most Web pages. When a crawler fetches a page, it culls all of the links appearing on the page and adds them to

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engine indexes some pages from a site that it indexes all of the site’s pages. Because much of the Web is highly connected via hypertext links, crawling can be surprisingly efficient. A May 2000 study published by researchers at AltaVista, Compaq, and IBM drew several interesting conclusions that demonstrate that crawling

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specified by the search query. 392 The Invisible Web hypertext. A system that allows computerized objects (text, images, sounds, etc.) to be linked together. A hypertext link points to a specific object; clicking the link opens the file associated with the object. intelligent crawling (smart spidering). Techniques that go beyond the basic

The Innovators: How a Group of Inventors, Hackers, Geniuses and Geeks Created the Digital Revolution

by Walter Isaacson · 6 Oct 2014 · 720pp · 197,129 words

device would have a “direct entry” mechanism, such as a keyboard, so you could put information and your records into its memory. He even predicted hypertext links, file sharing, and ways to collaborate on projects. “Wholly new forms of encyclopedias will appear, ready made with a mesh of associative trails running through

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the personal computer revolution: on-screen graphics, multiple windows on a screen, digital publishing, blog-like journals, wiki-like collaborations, document sharing, email, instant messaging, hypertext linking, Skype-like videoconferencing, and the formatting of documents. One of his technocharged protégés, Alan Kay, who would later advance each of these ideas at Xerox

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made edits, added graphics, changed the layout, built a map, and embedded audio and visual elements in real time. They even were able to create hypertext links together. In short, Engelbart showed, back in 1968, nearly everything that a networked personal computer does today. The demo gods were with him, and to

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, who dreamed up a brilliantly ambitious project called Xanadu, never brought to fruition, in which all pieces of information would be published with two-way hypertext links to and from related information. Hypertext was a way to allow the connections that were at the core of Berners-Lee’s Enquire program to

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like rabbits; anyone could link to documents on other computers, even those with different operating systems, without asking permission. “An Enquire program capable of external hypertext links was the difference between imprisonment and freedom,” he exulted. “New webs could be made to bind different computers together.” There would be no central node

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, Berners-Lee was glancing through the Internet’s alt.hypertext newsgroup and ran across this question: “Is anyone aware of research or development efforts in . . . hypertext links enabling retrieval from multiple heterogeneous sources?” His answer, “from: timbl@info.cern.ch at 2:56 pm,” became the first public announcement of the Web

Rebel Code: Linux and the Open Source Revolution

by Glyn Moody · 14 Jul 2002 · 483pp · 145,225 words

thing called HTTP, which no one really knew much about at that point.” Gophers, a series of nested menus as opposed to the Web’s hypertext links, were an alternative way to navigate through information on the Internet. In his book, Berners-Lee suggests that one reason that the Gopher system failed

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of the X Window system, also known as X11. Berners-Lee had written a line browser capable of displaying lines of text along with any hypertext links they contained. This approach was acceptable in the early days because there were no graphics in Web pages. His program ran on the NeXT computer

Where Good Ideas Come from: The Natural History of Innovation

by Steven Johnson · 5 Oct 2010 · 298pp · 81,200 words

after he had first programmed Enquire, he began sketching out a more ambitious application that could make connections between documents stored on different computers, using hypertext links. For a while he struggled with the right name for his nascent platform, calling it an information “mine” or “mesh.” Eventually, he hit upon a

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as digital votes endorsing the content of those pages, they were exapting Berners-Lee’s original design: they took a trait adapted for navigation—the hypertext link—and used it as a vehicle for assessing quality. The result was PageRank, the original algorithm that made Google into the behemoth that it is

Tcl/Tk, Second Edition: A Developer's Guide

by Clif Flynt · 18 May 2003 · 792pp · 48,468 words

Widget 402 11.3.4 11.4 HTML Display Package 406 Displaying HTML Text 406 11.4.2 Using html_library Callbacks: Loading Images and Hypertext Links 408 11.4.3 Interactive Help with the text Widget and htmllib 414 11.4.1 11.5 Bottom Line 418 11.6 Problems 420

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tags to deﬁne the fonts for the text widget to use to display the text. 11.4.2 Using html_library Callbacks: Loading Images and Hypertext Links To display an image, the html_library needs an image widget handle. If the library tried to create the image, it would need code to

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it from the web, extract it from a database, code it into the script, and so on. The requirements for handling hypertext links are similar. A browser will download a hypertext link from a remote site, a hypertext on-line help will load help ﬁles, and a hypertext GUI to a database engine might

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generate SQL queries. When a user clicks on a hypertext link, the html_library invokes the user-supplied procedure HMlink_callback to process the request. Note that you must source html_library.tcl before you deﬁne

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with WIN: .t HANDLE: .t.9 SRC: logo The html_library uses a technique similar to the image callback procedures to resolve hypertext links. When a user clicks on a hypertext link, the parsing engine invokes a procedure named HMlink_callback with the name of the text window and the content of the href

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=value ﬁeld. The html_library provides a dummy HMlink_callback that does nothing. An application must provide its own HMlink_callback procedure to resolve hypertext links. Syntax: HMlink_callback win href A procedure that is called from the html_library package when a user clicks on an <A href=value> ﬁeld

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requested help ﬁle. Example 11.23 Script Example source htmllib.tcl ############################################################## # proc HMlink_callback {win href}-# This procedure is invoked when a user selects a hypertext # link in the HTML display. # # In an actual browser, the href field would contain the URL of # the HTML page to retrieve. In this example, it

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$href] "HMrender $win" } # Define three sets of simple HTML text to display # This is the first text to display. It is an Unordered List of # hypertext links to the other two sets of HTML text. set HTMLText1 { <HTML> <HEAD><TITLE> Initial Text </TITLE></HEAD> <BODY> <UL> <LI> <A href=HTMLText2> Clicking this

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"HMrender .t" Script Output HMlink_callback was invoked with win: .t href: HTMLText2 Before clicking a hypertext link Clicking this line will select text 2. Clicking this line will select text 3. After clicking top hypertext link This is text 2. 11.4.3 Interactive Help with the text Widget and htmllib The next

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inserted into the HTML document with the HMset_image and associated HMgot_image procedures. Syntax: HMset_image win handle src Syntax: HMgot_image handle image ■ Hypertext links are inserted with a user-supplied HMlink_callback procedure. Syntax: HMlink_callback win href 11.6 Problems The following numbering convention is used in all

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–414 DOCS folder, 504 parsing, 418 text, displaying, 406–408 text widget support, 418 html_library, 406 callbacks, using, 408–414 HMlink_callback procedure, 412 hypertext link resolution, 412 image widget handle, 408 interactive help with, 414–418 procedure invocation, 408 script retrieving design, 409 http handle, 69 I ice_lint, 610