Friday, February 23, 2024 12:22 PM
I. Web is not the Internet
a. Internet is a global data communication network
b. Web is one of the many technologies that use the internet to distribute
data
c. World Wide Web (just the Web) - collection of HTML docs, images, vids,
sound files, that can be linked to each other and accessed over the
internet using a protocol called HTTP
d. Web browser - program that communicates with a web server and
displays web pages
e. Hypertext - describe a comp system that could store literary docs, link
them in logical relationships, allow readers to comment and annotate on
what they read
II. Web Sites
a. Web site = contains a collection of related info organized and formatted
so it can be accessed using a browser
b. Web server - internet based computer that stores Web site content and
accepts requests from browsers
c. Web page - based on HTML source document, stored as a file on a web
server
III. Hypertext Links
a. Web pages are connected by hypertext links
b. Links are commonly indicated by underlined or colored text, or a photo,
button, tab, or object
c. Unidirectional links
i. Doc A links to Doc B, not vice versa
d. Bidirectional links
i. Connects two docs using a two-way link that can be followed from
either document
IV. URLs
a. Every web page has a unique address called URL (uniform resource
locator)
i. Begin with http://
ii. File name of a specific page appears last in the url
iii. Some contain a search rather than the name of a html doc
b. Rules of correctly typing one
i. Never contains spaces
ii. http://, can be omitted
iii. Always use a forward slash
iv. Duplicate the URLs capitalization exactly- some are case sensitive
v. Links aren't urls
c. URLs contain a domain name
d. Linkrot - situation where a link leads to pages that are no longer available
e. Many are long and complex
f. Several services create short URLs
The Web Page 1
, Browsers
Friday, February 23, 2024 12:52 PM
I. Basics
a. Essential elements of a browser
i. Entry area for URLs and searches
ii. Navigation controls
iii. Refresh button
iv. Home button
v. Settings menu
vi. Display area
b. Popular browsers
i. Apple safari
ii. Google chrome
iii. Microsoft edge
iv. Mozilla firefox
c. Can designate a default browser so it's automatically
used when you click a link.
II. Customization
a. Customize browser by
i. Change home page
ii. Customize bookmarks and favorites
iii. Control tab behavior
iv. Select predictive services
v. Adjust password settings
b. Browser home page - 1st page displayed when the
browser starts
i. Search engine site, google, makes a good home
page
c. Predictive services - look ahead N anticipate what you
might do when searching or filling out forms while using
a browser
i. Automatically fill in form data based on past
entries made
d. Bookmarks (favorites)
i. Link to pages that u use frequently
e. Browser tabs - allow browser to queue up mult web
pages to easily switch btwn them
f. Browser extension - adds features to a browser
i. List of installed extensions and provide tools for
disabling, enabling them
III. Browser Cache
a. Browsers pull html docs, images, and other page
elements to your local device
b. Browser fetches pages and graphics to form a web page,
it stores that material on your device in temp files =
browser cache.
c. History list - sites that you've visited
d. Private browsing - traces of your activity are not
maintained in the history list or browser cache
i. Use it to not leave a trail that can be seen by
others who gain access to a device you recently
used
e. Browsers ask to save passwords when you log in to sites
i. Risk - anyone who gains access to your device can
easily log in to your password protected sites b/c
passwords are supplied by the browser
The Web Page 2