Transcript Internet - cteunt.org

Principles of
Information Technology
Basic Internet Functions
Copyright © Texas Education Agency, 2013
What is the Internet?
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The Internet is a system of interconnected
computer networks that use standard
communications protocols.
Copyright © Texas Education Agency, 2013
Before the Internet
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Prior to 1991, people had to physically go the
library to perform research.
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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
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ARPAnet began researching and developing
strategies in the 1960s after the Soviet Union
launched satellites into outer space.
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The US felt threatened.
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The Internet was launched to the public in
1991.
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How to get the Internet
ISP
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Internet Service
Provider
A company who provides
access to the Internet
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Examples
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Verizon Wireless
AT&T
Time Warner Cable
Comcast
Hot Spot
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A Place/Spot that offers
Internet wirelessly
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Examples
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McDonald’s
Books A Million
Starbucks
Chick-Fil-A
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Accessing the Internet
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Web Browsers
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Software applications used to locate and display
the Internet
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Examples
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Internet Explorer
Mozilla Firefox
Google Chrome
Netscape Navigator
Each web browser performs the same duties, but
each person has a preference on which to use.
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All about the Internet
ADDRESS BAR
FAVORITES
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All about the Internet
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Double click on your web browser to access
the Internet.
Your homepage will automatically appear
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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.
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URL—Uniformed Resource Locator
 Example: http://www.unt.edu/
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Your website should now be accessible.
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Parts of a URL
http://
www.
PROTOCOL
LOCATION
OF THE
SITE
unt.
NAME OF THE
ORGANIZATION
edu/
EXTENSIONS
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Extensions
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Suffixes at the end of the URL that tell you
what type of site you are visiting
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.com _____ COMMERCIAL
.edu _____ EDUCATIONAL INSTITUTION
.gov _____ GOVERNMENT
.mil _____ MILITARY
.net _____ NETWORK
.org _____ ORGANIZATION
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Uses of the Internet
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Perform Research
Play Games
Network
Socialize
Email
Make video calls
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Searching the Internet
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Search Engines
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A program that searches documents for
specified keywords and returns a list called
hits
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Examples
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Google
Yahoo
Bing
Ask Jeeves
Dog Pile
MSN search
Ask.com
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How to Use a Search
Engine
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When using a search engine, type in
keywords.
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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
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Open a web browser.
Type in google.com in the address bar.
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Google should pop up.
In the search bar, type the following:
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Cracking knuckles problem
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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
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Websites have underlined links and linked
photos called hyperlinks.
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Hyperlinks take you to another page on the
Internet.
Favorites
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Has a star icon and allows you to save your
favorite sites
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LET’S BROWSE
THE INTERNET
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