CSC CH. 4
Page Not Found Code
"404 Not Found"; when requested source does not exist
External CSS
A Cascading Style Sheet that is stored in a file separate from the HTML source document for a Web page; created automatically
HTML editor
A computer program for editing HTML, the markup of a webpage; WordPress or Google Slides
first-party cookie
A cookie that is created from the Web site that currently is being viewed.
third-party cookies
A cookie that was created by a third party that is different from the primary Web site.
search history
A list of queries entered into a search engine and also stored by the search engine; not the same as browser history
markup language
A series of commands used to format, organize and describe information on a Web page.
HTTP Methods
A set of commands that help your browser communicate with Web servers.
popular web development products
Adobe Dreamweaver; open source BlueGriffon
HTTPS (Hypertext Transfer Protocol Secure)
An encrypted version of HTTP. It uses port 443.
Popular browsers
Apple Safari, Google Chrome, Microsoft Internet Explorer, Microsoft Edge, and Mozilla Firefox
HTML document
File that contains your website content and the HTML formatting instructions
popular web hosting sites
GoDaddy, Amazon Web Services, HostGator and Google
unidirectional links
Links between Web pages that go in one direction only, linking A to B, but not linking B back to A.
popular web browsers
Microsoft edge, open source Mozilla Firefox, Google Chrome and Apple Safari
1st popular web browser
Mosaic
Search Engine Optimization (SEO)
Series of practices an organization can use to improve their visibility, or optimize, how their web pages or website show up on the search engine results pages.
client-side port
The client-side port definition feature enables a client application (of server type) to define its connection parameters before connecting to the server application. This enables the server application to control the number of client connections.
URL
Uniform Resource Locator; every web page has a unique one
browser cache
When your browser fetches pages and graphics to form a Web page, it stores that material on your device in temporary files (browser history)
HTTP
a communication protocol that works with TCP/IP to get the elements for Web pages to a local browser
Web hosting service
a company that provides space on a server to house Web pages
Web search engine
a computer program designed to help people locate information on the Web by formulating simple queries consisting of one or more words called keywords or search terms
hypertext
a computer system that could store literary documents, link them according to logical relationships, and allow readers to comment and annotate what they read
link popularity
a measure of the quality and quantity of the links from one Web page to others
search algorithm
a method of locating a specific item in a larger collection of data
Plugin
a program that extends a browser's ability to work with file formats
Citation
a quotation from or reference to a book, paper, or author, especially in a scholarly work.
HTTP session
a sequence of transactions most commonly used to request data from a Web server and return the files needed to display a Web page in a browser window
CSS (Cascading Style Sheets)
a set of detailed style specifications for an HTML document
cookie
a small chunk of data generated by a Web server and stored as a text file in memory or on disk
a browser extension
adds features to a browser
browser tabs
allow your browser to queue up multiple Web pages so that you can easily switch between them
web server
an Internet-based computer that stores Web site content and accepts requests from browsers
web page
based on an HTML source document that is stored as a file on a Web server
a web browser
client software that displays Web page elements and handles links between those pages
Bidirectional links
connects two documents using a two way link that can be followed from either document
source document
contains the text for a web page interested with coding for how to display text and other visual and auditory elements
session cookies
cookies stored in memory and deleted when the browser is closed; never stored
persistent cookies
cookies that are stored on a device after a session ends; some are programmed to time out after a designated date
HTML Versions
current HTML is HTML5; Tim Berners Lee developed original in 1990
Tim Berners-Lee
developed specifications for URLs, HTML, and HTTP--foundations of technologies of today's Web; created Web browser software originally called WorldWideWeb, renamed Nexus in the 1990s
Dynamic Web Page
displays customized content in response to keyboard or mouse actions, or based on information supplied directly or indirectly by the person viewing the page
Static Web Page
displays the same information, regardless of who accesses it
client-side scripts
embedded in an HTML document and run locally when a Web page is displayed by a browser
Invisible Web
encompasses pages that require password-protected logins and pages that are dynamically generated with server-side scripts
Hypertext links
how web pages are connected; commonly indicated by underlined or colored text, but a photo, button, tab, or other object on a Web page can act as the source of a link
<p>
indicates a new paragraph
the web
is a collection of HTML documents, images, videos, and sound files that can be linked to each other and accessed over the Internet using a protocol called HTTP
Internal CSS
is included within the header of an HTML document, places all the formatting elements where they can be edited hunting through the entire document
HTML document/source document
it is the source of HTML tags used to construct a web page
search terms
keywords or phrases about a topic that help locate information
Bookmarks/favorites
link to pages that you use frequently
predictive services
look ahead and anticipate what you might do when searching or filling out forms while using a browser
query processor
looks for your search terms in search engine's indexed database and returns a list of relevant Web sites
.html file extension
most common file extension for a web page
Default browser
only one browser can be designated; automatically used when you click a link in an email message or PDF file
stateless protocol
protocol that maintains no information about its clients
server-side script
run on Web servers rather than on your local device
Linkrot
sometimes links lead to pages that are no longer available
HTML tags
specify how the document should appear when displayed on a computer screen or printed
Search Operators
symbols or words that you add to your search terms in the Google search box to gain more control over the results that you see: NEVER use spaces between the operator and your query
HTML (Hypertext Markup Language)
the predominant language used to create web pages
Public Key Encryption
very clear process that requires one key to encrypt data but a different key to decrypt it
Components of a search engine
web crawler, indexer, database, query processor