1. Principles of Information Technology Basic Internet Functions
What is the Internet?
The Internet is a system of interconnected computer networks that use standard communications protocols.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

2. 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?
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

3. The Day of the Internet
ARPAnet began researching and developing strategies in the 1960s after the Soviet Union launched satellites into outer space.
The US felt threatened.
The Internet was launched to the public in 1991.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

4. How to get the Internet ISP Hot Spot Internet Service Provider
A company who provides access to the Internet
Examples
Verizon Wireless
AT&T
Time Warner Cable
Comcast
A Place/Spot that offers Internet wirelessly
Examples
McDonald’s
Books A Million
Starbucks
Chick-Fil-A
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

5. Accessing the Internet
Web Browsers
Software applications 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 a preference on which to use.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

6. All about the Internet ADDRESS BAR FAVORITES
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

7. 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:
Your website should now be accessible.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

8. NAME OF THE ORGANIZATION
Parts of a URL
www unt edu/
PROTOCOL
LOCATION OF THE SITE
NAME OF THE ORGANIZATION
EXTENSIONS
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

9. 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
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

10. 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
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

11. 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.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education

12. Let’s Practice Using Search Engines
Open a web browser.
Type in google.com in the address bar.
Google should pop up.
In the search bar, type the following:
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.
Copyright © Texas Education Agency, 2013
Trade & Industrial Education