Chapter 7: A Connected World Flashcards
Internet (2)
Worldwide web or connection of computer & Networks
Network of networks (internetworking)
Who Developed Internet
Advanced Research Projects Agency Network
(ARPANET): Project started in 1969 by the U.S. Department of Defence
WWW
what is it and why was it created
who invented
World wide web: Make internet available to regular users not just researchers
Invented by Tim Berners-Lee
Uniform Resource Locators (URL)
Address of online document or site on internet
IP (Internet Protocol) Address
Where network or login is being accessed (connection)
Domain Name
Unique identifier of computer, website or network addresses on internet
Domain Name System
Domain Names converted to IP Address
Domain Name system example
You see: www.umanitoba.ca
Dns
Computer sees 130.179.16.50
you see: www.umanitoba.ca
Top Level Domains (TLD) and 2 examples
denotes type of organization or country address specifies
etc Organizational gTLDs e.g., .org, .com, and .gov
Country-code (ccTLDs): e.g., .ca, .cn, .br, and .uk
Hyperlink
jump you to another web page
Hypertext (2)
click to follow particular thread, reference in text based documents
Hypermedia
document include reference to audio, text, images, video, other documents
Navigation Tools or Browsers
travel website to website
Search Engines
look up information and desired pages, enter keywords
Directories
indexes of information based on keywords in documents (How SE find info)
Automated Directory and what is crawler based
crawler based etc google or bing. Creates indexes of search terms and collects them automatically
Human Powered and what is it
dmotorcars.com
requires keywords to be manually submitted for a web page list result
Hypertext Markup Language (HTML)
language used to create webpages
define layout using tags and attributes
HTML Structure
<html>
<head>
(enter page description)
</head>
<body>
(Enter page's content.)
</body>
</html>
Types of Internet Connection - Symmetric DSL
same slower speed in both directions (up/downloading)
Types of Internet Connection - Asymmetric DSL
downloading faster than uploading
different speeds
Types of Internet Connection - Very High Speed DSL
Downstream/Upstream transmission rate up to 100 Mbps over short distances
Intranet
Corporate panel, similar to internet. Collect, store and spread information for business,, used by corporate members
Extranets and company advantages
Secure network, uses internet to connect intranets of businesses.
reduce internetworking costs and competitive advantage
