principles of information technology basic internet functions

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, 2012

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??


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.


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


Valued eMachines Customer

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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.


All about the Internet


ADDRESS BAR

FAVORITES

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.


Parts of a URL


http:// www. google. com/

PROTOCOL LOCATION OF THE

SITE

NAME OF THE ORGANIZATION

EXTENSIONS

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


Uses of the Internet

Perform Research Play Games Networking Socialize

Facebook, Twitter, Blogs, Chat Rooms Email Video calls

Skype


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


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.


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.


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.


http://www.yahoo.com/


LET’S BROWSE THE INTERNET

principles of information technology basic internet functions

Documents

internet websites

internet double

internet arpanet

internet search engines

organization extensions

address bar favorites

google search bar type

url address