Principles of Information Technology Principles of Information Technology Basic Internet Functions & Cutting Edge Technology Copyright © Texas Education.

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Presentation transcript:

Principles of Information Technology Principles of Information Technology Basic Internet Functions & Cutting Edge Technology Copyright © Texas Education Agency, All rights reserved.

What is the Internet? The Internet is a system of interconnected computer networks that use standard communications protocols. Copyright © Texas Education Agency, All rights reserved.

Before the Internet The Internet was launched to the public in Prior to 1991, people had to physically go the library to perform research. o 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, All rights reserved.

How to get the Internet o A Place/Spot that offers Internet wirelessly o Examples Fast food places Bookstores Coffee shops Some restaurants Internet Service Provider A company who provides access to the Internet o Examples Companies that provide Wireless services Phone providers Cable providers ISP Hot Spot Copyright © Texas Education Agency, All rights reserved.

Accessing the Internet Web Browsers o Software applications used to locate and display the Internet There are many examples of Internet browsers o Each web browser performs the same duties, but different people have a preference regarding which browser to use. Copyright © Texas Education Agency, All rights reserved.

All about the Internet ADDRESS BAR Copyright © Texas Education Agency, All rights reserved.

All about the Internet Double click on your web browser to access the Internet. Your homepage will automatically appear o 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. o URL— Uniformed Resource Locator Example: o Your website should now be accessible. Copyright © Texas Education Agency, All rights reserved.

Parts of a URL www. unt. edu/ PROTOCOL LOCATION OF THE SITE NAME OF THE ORGANIZATION EXTENSIONS Copyright © Texas Education Agency, All rights reserved.

The URL URL stands for o Uniform Resource Locator o URL is the website address What do all the letters mean? Name of the server that stores the file/page you are looking at Hostname Domain Type of protocol used to communicate between the browser and the server – this example is hypertext transfer protocol http Copyright © Texas Education Agency, All rights reserved.

Extensions Suffixes at the end of the URL that tell you what type of site you are visiting o.com _____ COMMERCIAL o.edu _____ EDUCATIONAL INSTITUTION o.gov _____ GOVERNMENT o.mil _____ MILITARY o.net _____ NETWORK o.org _____ ORGANIZATION Copyright © Texas Education Agency, All rights reserved.

Uses of the Internet Perform Research Play Games Network Socialize Make video calls Copyright © Texas Education Agency, All rights reserved.

How to Use a Search Engine When using a search engine, type in keywords. o Keywords are short important words used in search engines. o They narrow down the search. The results of a search are called hits. Copyright © Texas Education Agency, All rights reserved.

Internet Search Strategies Search Engines Program that searches the Internet (other websites) for information according to keywords that the user types in. Provides the user with a list of website links of webpages that contain information about the keywords typed into the search criteria. Copyright © Texas Education Agency, All rights reserved.

Internet Search Strategies Can you name three common search engines? Copyright © Texas Education Agency, All rights reserved.

Internet Search Strategies Advanced Search o Using an advanced search on a web browser allows you to filter or narrow down specific choices. Notice the options available Exact wording Unwanted words Copyright © Texas Education Agency, All rights reserved.

Internet Search Strategies Advanced Search o Words such as: OR, AND, NOT are called BOOLEAN terms o Using those words in an Internet search to limit the search parameters is called a BOOLEAN search Copyright © Texas Education Agency, All rights reserved.

Let’s Practice Using Search Engines Open a web browser. Type your favorite search engine in the address bar. o The search engine should pop up. In the search bar, type the following: o 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, All rights reserved.

Things to know about the Internet Websites have underlined links and linked photos called hyperlinks. o Hyperlinks take you to another page on the Internet. Favorites o Has a star icon and allows you to save your favorite sites Copyright © Texas Education Agency, All rights reserved.

Sending Electronic Information o Stands for Electronic Mail o To, From, Date, Subject o Letter or memo content o Attachments Pictures, files o A way to send a letter or memo instantly through the Internet rather than through the US Postal Service o Send, reply, forward Copyright © Texas Education Agency, All rights reserved.

Sending Electronic Information E-message boards o Stands for electronic message board o Similar to a bulletin board o Can post text notices for others to see/read o Usually has a main topic for discussion o Others post comments to the main topic and to the other comments that follow o The comments and replies are called a discussion thread Copyright © Texas Education Agency, All rights reserved.

Sending Electronic Information Online Chat o Area of Internet where you can text message instantly o Chat rooms can have several people at the same time o Several conversations at once can be distracting and difficult to follow o Can open a private chat window with limited participants Copyright © Texas Education Agency, All rights reserved.

Cutting Edge Technology :TissueReplacement–re-growing damaged bone joints in the body using injectable tissue engineering rather than using surgery and a metal replacement joint. 2006:Trojan Particles–Injectable clear fluid containing tiny particles that travel through the body to locate cancer cells. They trick the cancer cells into “eating” the particles as food, and then kill them. Copyright © Texas Education Agency, All rights reserved.

Cutting Edge Technology : NanoRadio – 1.5 inches x.3 inches. 2010: Interactive Tablet – A popular American multinational computer corporation released its first version of this now popular interactive device. Copyright © Texas Education Agency, All rights reserved.

Cutting Edge Technology : 3-D Printers – Manufactures 3-D models of various objects. 2013: Computer Glasses – A wearable computer with a head-mounted display. Copyright © Texas Education Agency, All rights reserved.