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World Wide Web (WWW) :explode: [:check:] (Hypertext uploaded image…
World Wide Web (WWW)
:explode: [:check:]
Net Neutrality
All packets on the Internet should be treated equally
Every single thing is given access with the same bandwidth and the same priority.
Without it, ISPs can charge user to pay for for a premium speed
Hyperlinks
!
Links one website to another.
Conceptualized by Vannevar Bush in 1945
Hypertext
A text that contains hyperlinks and connects a webpage to another. It is clickable and usually blue-coloured/underlined
URL
(Uniform Resource Locator)
Examples: www.crashcourse.com www.facebook.com
If your home have an address, the website have one too!
HTTP
(Hypertext Transfer Protocol)
Ask the web server for the hypertext-ed page
Status Code
Example:
200 = OK
404
= Webpage doesn't exist
HTML
(Hypertext Markup Language)
Add an "a" tag in html to hyperlink your references
We can markup a text file with hypertext elements do differentiate between plain text and link
Search Engine
Consist of 3 different software that works together
Web Crawler
Adds new links found on the internet
Index
Records terms in the website
Search
Algorithm that search the web for specific terms based on
Index
Web Browser
Gives users access to web servers.
First web browser and web server was written by SIR TIM BERNERS-LEE over the course of two months in 1990 and it was released to the public in 1991.
User request pages and media from web server, and web browser will return and render the requested content
Mosaic
is the first browser that introduce graphics, bookmarks and have a user friendly interface
