The World Wide Web: Crash Course Computer Science #31

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"OK, I've got the page, and here it is."

hyperlink

A block of text or a graphic that when mouse-clicked takes the user to a new location to an internal or external page.

Web Server

A computer that runs special software to serve up Web content by responding to requests.

web page

A document which can display text, graphics, audio, video and other elements through a web browser.

Google Algorithm

A set of clearly defined, logical steps that create a Google search result from keywords and page rank was developed as part of a research project at Stanford University in 1996 called BackRub

Cascading Style Sheets (CSS)

Allow you to specify styles for various Web page elements.

GET request

An HTTP method in which the client requests data such as a web page. The client might provide some data as part of the request in the query string of the URL.

CERN

Conseil Européen pour la Recherche Nucléaire, a provisional body founded in 1952 with the mandate of establishing a world-class fundamental physics research organization in Europe.

<a>

Defines a hyperlink

<li>

Defines a list item

<ol>

Defines an ordered list

Mosaic Web browser

Developed at the University of Illinois, at Urbana-Champaign in 1993, it was the first browser that allowed graphics to be embedded alongside text.

JumpStation

First web search engine. This consistent of three pieces of software that worked together: web crawler, ever-enlargening index and search algorithm.

<h1>

Heading 1

<h2>

Heading 2

Yahoo

Initially named Jerry and David's Guides to the World Wide Web it was a maintained webpage which served as directories hyper-linking to other websites

What made Google different (and better)?

Instead of trusting the content on a webpage, they looked at how other website linked to that page. If it was a spam page with the word "cats" written over and over again, no site would link to it. But if the webpage was an authority on cats, then other sites would likely link to it

Uniform Resource Locator (URL)

Internet address that identifies hypertext documents

Hypertext Transfer Protocol (HTTP)

The set of rules that controls the transfer of web pages. It is a protocol that allows web browsers to talk to web servers.

404

Unknown trouble

World Wide Web (WWW)

a huge distributed application running on millions of servers worldwide, accessed using a special program called a web browser

Web Crawler

a program that pre-visits web pages to build an index

search engines

a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.

If you save HTML text into Notepad or Text Edit and name it something like "test.html", you should be able to open it by

dragging it into your computer's Web browser.

The world wide web is not interchangeable with the _________.

internet

Backlinks

links from external sources pointing to that webpage

The standard port number for Web servers is _____________.

port 80

HTTP added status codes which

prefixed any hypertext that as sent following a GET request.

Hypertext Markup Language (HTML)

protocol that controls how Web pages are formatted and displayed

hyperlink reference

the URL address of a Web page the link "goes to", the target of the link - "href"

Net Neutrality

the principle that all Internet traffic should be treated equally by Internet Service Providers.

Associative Indexing

whereby any item may be caused at will to select another immediately and automatically