principles of information technology basic internet functions
TRANSCRIPT
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Principles of Information Technology
Basic Internet Functions
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What is the Internet The internet is a system of interconnected
computer networks that use standard communications protocols.
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Before the Internet
Prior to 1991 people had to physically go the library to perform research. College students spent hours and hours in the
library to find information that we now can find by clicking a few times on the internet.
CAN YOU IMAGINE ACTUALLY GOING TO THE LIBRARY??
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The Day of the Internet
ARPAnet began researching and developing strategies in the 1960’s after the Soviet Union launched Satellites into Outer Space.
The US felt threatened.
The Internet was launched to the public in 1991.
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How to get the Internet
ISP Internet Service
Provider A company who provides
access to the Internet Examples
Verizon Wireless AT&T Time Warner Cable Comcast
Hot Spot A Place/Spot that offers
Internet wirelessly through a wire Examples
McDonald’s Books A Million Starbucks Chick-Fil-A
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Accessing the Internet
Web Browsers Software Application used to locate and display
the INTERNET Examples
Internet Explorer Mozilla Firefox Google Chrome Netscape Navigator
Each Web browser performs the same duties, but each person has their preference on which to use.
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All about the Internet
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ADDRESS BAR
FAVORITES
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All about the Internet Double click on your Web Browser to access
the Internet. Your Homepage will automatically appear
The page that automatically comes up when you start your Web Browser is your Homepage.
Once you open the Internet, type your URL address in the Address Bar. URL-Uniformed Resource Locator
Example: http://www.google.com/ Your Website should now be accessible.
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Parts of a URL
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http:// www. google. com/
PROTOCOL LOCATION OF THE
SITE
NAME OF THE ORGANIZATION
EXTENSIONS
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Extensions
Suffixes at the end of the URL that tell you what type of site you are visiting. .com _____ COMMERCIAL .edu _____ EDUCATIONAL INSTITUTION .gov _____ GOVERNMENT .mil _____ MILITARY .net _____ NETWORK .org _____ ORGANIZATION
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Uses of the Internet
Perform Research Play Games Networking Socialize
Facebook, Twitter, Blogs, Chat Rooms Email Video calls
Skype
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Searching the Internet Search Engines
A program that searches documents for specified keywords and returns a list called hits Examples
Google Yahoo Bing Ask Jeeves Dog Pile MSN search Ask.com
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How to use a Search Engine
When using a Search Engine, type in keywords. Keywords are short important words used in
Search Engines. They narrow down the search.
The results of a search are called HITS.
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Let’s Practice Using Search Engines Open Internet Explorer. Type in google.com in the Address Bar.
Google should pop up. In the Google search bar type:
Cracking Knuckles problem Notice that we did not type in a Question…just the
KEYWORDS. The lists that appear are called HITS. We will now find out if Cracking your Knuckles is a
problem.
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Things to know about the Internet
Websites have underlined links and linked photos called HYPERLINKS. Hyperlinks take you to another page on the
Internet. Example: www.yahoo.com
Favorites Has a star icon and allows you to save your
favorite sites.
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LET’S BROWSE THE INTERNET