Presentation on theme: "THE INTERNET -Notes Presentation-"— Presentation transcript:
1THE INTERNET -Notes Presentation- Download theInternet –Notesfrom this weeks page of the teacher website.
2I. The Internet and the World Wide Web The Internet = gigantic computer network that connects computers across the world.-Changed communication, working, shopping, fun,World Wide Web = It is a way of accessing the huge collection of information, services, and Web sites available through the Internet.Only one part of the Internet.Not the same as the Internet.Internet = HighwayWeb = Car (that lets you travel the highway)
3II. Web Sites and Web Pages The Web is made up of Web Sites:Web Sites = specific location on the Web that contains a collection of related files and resources by a person, group, or organization.Web Sites are made up of Web Pages (sub pages)Book = Web SitePages = Web Pages
4III. URL – Uniform Resource Locator Homes and Businesses have addresses – so do Web Sites!This address is called a URLUnique, distinctive address for Sites and PagesHTTP – Hypertext Transfer ProtocolThe Domain Name-name of the websiteThe Subpage Name-usually separated from domain name with slash
5IV. Getting ConnectedDevices used to connect to the Internet is increasing daily!To connect with your computer:Need: 1. Computer 2. ISP3. Modem Communications Software(If Wireless – Need Wireless Router)2. What is an ISP (Internet Service Provider)?Company that sells you access to the Internet,usually for a monthly fee.-ISP Examples: Insight, Windstream, BellSouth, AT&T
6IV. Getting Connected Cont. 3. What is a Modem?Needed to connect computer to Internet.Modem = Lets your computer send data to and receive data from other computers or to a network.Manages Internet link/connection between user and ISP.Gives specific IP Address. (Internet Protocol)Bandwidth – or the rate of data transmission varies with each.Speed of data is measured in (Bits per second – bps)kilobits per second (Kbps) (thousands per second)Megabits (Mbps) (millions per second)
7Types of Modems MODEM DESCRIPTION Telephone (or dial-up) Modem Connects your computer to the Internet using telephone lines. Slowest type - speed 56 kbpsDSL (Digital Subscriber Line) ModemUses telephone line to supply a high-speed Internet connection.Speed 8 to 24 MbpsCable ModemUses your cable television lines to supply a high-speed Internet connection. Speed 384 Kbps to 50 Mbps.
8IV. Getting Connected Cont. 4. What is a Web Browser?Web Browser = Software program that lets you surf the Web and interact with Web sites. Ex. MS Internet Explorer, Netscape, Apple Safari, Mozilla Firefox, etc. -Make sure to have an updated version to access all websites!
9V.Electronic Mail ( ) = Communication sent from one person to another, or to many, over the Internet. Several Methods: -Software (Microsoft Outlook) -Web (Hotmail, Gmail, Yahoo!) -Hand Held Device (cell phone, PDA)
10V. E-Mail Continued How does it Work? Message travels over Internet to a person’s unique address and each network has a unique domain name.Can pass through several different networksProcess takes few secondsDomain Name – Identifies the providerUser Name –identifies youExtension of the address
11V. E-Mail Continued Important to Use Proper Netiquette -Refers to the good manners one uses inelectronic communications.Remember – people can’t read your facial/verbal expressions through .Spam = like junk mail – mail sent in bulk to many people’s accounts.Sent for one reason usually – sell you something!Take Steps to Avoid Spam:*Spam Filters *Don’t Open s from Un-known
12“Don’t believe everything you read!” VI. Can I Trust the Web?“Don’t believe everything you read!”Important to Evaluate, or assess the value of, Web Sites with a critical eye!
13How to Evaluate a Web Site Information Should Be..Questions To AskWhat to Look ForRelevantDoes your information relate to your topic?Use precise keywords in search engine. Check each site.ReliableCan the author or publisher be trusted?Is the info biased?Search for the name of the site’s creator. Who is it?Is the site selling products or services?RecentIs the Information up-to-date?Loop for an update or copyright date at bottom of page? More recent-more accurate.VerifiableDo other sources give you the same information?Check other sources (both print and Web) to see if similar.
15Un-Reliable Sites for Accurate Information? Wiki Sites – Sites where any users can log on andadd-edit info.Example - WikipediaCertain Videos/MoviesCan be uploaded by anyone. Evaluatethe author or creator first.Example – Certain YouTube VideosQuestion/Answer SitesAsk.com, Yahoo! Answers, Answers.comAcceptable to use as basis or grounds for start of research. But always verify information and use relevant, reliable, & recent sites.
16VII. Protect Your Information on the Internet? How to keep your informationsecure, or safe:Firewall = hardware or software that protects a computer or network from intruders.Never give out personal information, unless secure.Use different user names & passwords for different sites.Blocking/Filtering Software – prevents users from accessing certain sites. Can monitor or record what sites a user has visited as well.
17VIII. Surfing the Internet Use Search Engines – Website lets you search for other Web pages using keywords.Examples: Google, Yahoo, Bing, etc.Home Page – First Web page you see when you open a Site.Includes Name of Site, Links to other Sites, Table of Contents, Graphics, Search Boxes, etc.Usually includes Site Map = Index of all the main pages in the site that you may use to jump straight to a page without drilling down.Drill Down – When you explore Web Site – start with Home Page usually and drill down (clicking on links to open new Web pages within the site to find specific information)
18Using Boolean Operators When searching the Web – best to limit your search results using Boolean Operators.To Find Web Pages With…Use These Words or SymbolsExampleAn exact phrase in quotesUse quotation marks “ ““boston terriers”Two or more keywords (may not be next to each other on the page)AND, +, &, or just key a space between wordscats AND dogscats & dogscats + dogscats dogsOne or both keywordsORLizards OR snakesOne keyword but not anotherNOT, -cats NOT tigerscats -tigersA combo of specific informationUse a combination of Boolean operators“pet car” + lizards OR snakes (will find pages with “pet car” and lizards and pages with “pet care” and snakes)
19The Internet – Practice Please go to my teacher website – this week’s Page – download and save the “Internet – Practice” --- SAVE AS (Internet Practice –Your last name) --- Due by end of block (or by 10/3 by beginning of block to my !) Before start – explain Extra Credit Activity (see my example) - Binary Name