internet-over view

Slide 1: 

Information Literacy Program Module 3

Slide 2: 

Untangle the Web Module 3

Learning Objectives : 

Learning Objectives to explain the Internet and the World Wide Web to demonstrate how to locate information on the World Wide Web to explain different ways of searching the World Wide Web

Learning Outcomes : 

Learning Outcomes At the end of this session, students should: understand what the Internet and WWW are be more aware of search tools such as directories, virtual libraries, and search engines to locate information on the Internet understand the different ways of searching the World Wide Web

Some History : 

Some History electronic mail was introduced in 1972 and Queen Elizabeth II was the first state leader to send an email libraries began making online catalogs available--early 1980s Tim Berners-Lee of CERN developed hyperlinks. He called it the World Wide Web (WWW) ---- 1991

Some History, cont’d. : 

Some History, cont’d. the WWW is now the largest part of the Internet search engines and web directories have been developed to track web pages and enable people to find things wireless Internet --- 2000 worldwide there are over 1,022,063,282 Internet users --- 2006

What is the Internet? : 

What is the Internet? interlinked web of computer networks no organization, corporation or government owns or runs the Internet the WWW provides a single interface to the many functions of the Internet

Functions : 

Functions HTTP – hypertext transfer protocol ftp – file transfer protocol email internet chat newsgroups

Organization of the Web : 

Organization of the Web a web page a home page a web site a portal a web browser plug-ins

The URL - Uniform Resource Locator : 

The URL - Uniform Resource Locator URL indicates the location of a file on the Internet or WWW like a street address or library call number includes the type of service as well as the exact location of the file http://www.usp.ac.fj

Anatomy of a URL for http : 

Anatomy of a URL for http URL – uniform resource locator http://www.usp.ac.fj/library/e_resources/ Type of protocol Name of Host Computer Domain Name Directory Path Requested File .edu / .ac / .com / .net / .gov / .org / .shop / .arts / .rec

Different Domains on the Net : 

Different Domains on the Net .com or .co = commercial source .edu or .ac = education institute .gov = government source .int = non profit international organizations .net = mostly internet service providers e.g. Telecom .org = originally applied to non-profit organizations, but commercial and for-profit organizations now also use this designation email addresses tend to reflect the parent (domain name)

Domain Names : 

Domain Names http://www.fiji.gov.fj/ http://www.tuvaluislands.com http://rspas.anu.edu.au/ http://sourceforge.net http://www.who.int

Search Tools : 

Search Tools directories e.g. Yahoo, About deep Web, databases, ‘Virtual libraries’ e.g. Infomine search engines e.g. Google, Yahoo, Ask portals e.g. Microsoft MSN

Which Tool? : 

Which Tool? looking for a specific item want to browse in a broad subject area want to restrict results to sites that have been evaluated for quality → use Directories and Virtual Libraries looking for a specific topic looking for a subject that’s a bit vague just exploring to see what’s out there → use a Search Engine or Portal

Google Home Page : 

Google Home Page

Google's Advanced Search Option : 

Google's Advanced Search Option Google uses the 3 boolean operators and or not all of the time in its general search option – that’s why you get such large numbers of records

Google Advanced Search : 

Google Advanced Search

INFOMINE Home Page : 

INFOMINE Home Page

Ask.com Home Page : 

Ask.com Home Page

Ask.com Advanced Search : 

Ask.com Advanced Search

Via the Internet : 

Via the Internet you can access countless providers of information, therefore … evaluate the information you retrieve you do this by verifying / cross-checking the information against other reliable sources

In Summary : 

In Summary different search tools have different strengths and weaknesses it’s easier to compare the results between 2 or more search engines if you use the same search terms consider keeping a list of interesting web sites, with brief notes on strengths that interest you

And Remember : 

And Remember “Man is still the most extraordinary computer of all” ---John F. Kennedy