navigating the internet alphabet soup. a global network that connects millions of computers all...
TRANSCRIPT
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THE INTERNETNAVIGATING THE INTERNET ALPHABET
SOUP
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WHAT IS THE INTERNET? A global network that connects
millions of computers all over the world.The Internet backbone is the central network that links all the parts of the Internet together.
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HOW DO WE GET ACCESS TO THE INTERNET? ISP: Internet Service Providers sell
Internet access to customers
NSP: Network Service Providers supply direct backbone access to ISPs
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WHAT INTERNET SERVICE PROVIDERS ARE
AVAILABLE IN THIS AREA?
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WHAT IS THE
WORLD WIDE WEB? A system of computers that allows you
to communicate with other computers talking the same language (protocol)
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WHAT IS PROTOCOL? Protocol: rules for communicating
between two electronic devices Internet Protocol (IP): rules for
communicating on the Internet Hypertext Transfer Protocol (HTTP):
rules for transferring web pages (HTML documents) on the Internet
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PROTOCOL Simple Mail Transport Protocol
(SMTP): protocol used for transmitting electronic mail
File Transfer Protocol: a protocol designed to transfer files between an FTP server and a computer—example: downloading software
VoIP is a technology that allows telephone calls to be made over computer networks like the Internet.
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WHAT DOES URL STAND FOR? Uniform Resource Locator
Specifies the internet address of a file stored on a host computer
Example: http://www.d1baseball.com/conferences/standings_sec.htm
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WHAT IS THE FORMAT OF A URL? Protocol – host – path – filename
Example: http://www.d1baseball.com/conferences/standings_sec.htm
Protocol: http:// Host: www.d1baseball.com Path: conferences Filename: standings_sec.htm
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URL VS DNS Computers use a domain name system
to translate URLs into numeric addresses
The numeric address is known as the Internet Protocol (IP) address; a unique address is assigned to EVERY computer or device that connects to the Internet
An IP address is a four-part number, each part consisting of a digit from 0 to 255.Example: 207.46.192.254
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WHAT IS A TOP-LEVEL DOMAIN? TLD – Top level domain; suffix at the end
of a web address .com—commercial; generic .edu—educational institution—higher ed .gov—state or federal government .mil—U.S. military .net—network service provider (can be used
generically) .org—usually nonprofit but can be generic .pro—professional—like physicians, lawyers,
CPAs, etc. .name—reserved for individuals
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WHAT IS A COUNTRY CODE? A domain name that identifies the
location of a serverExample: bkps.k12.ar.us
.us—United States .jp—Japan .uk—United Kingdom .ca—Canada .mx—Mexico .it-?????? .in-?????????
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WHAT IS
WEB BROWSER SOFTWARE? Software Program that provides our
connection to the Internet Reads hypertext documents Examples:
Internet ExplorerSafariFirefox
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WHAT IS HYPERTEXT? A document written in HTML that
contains words/images that connect to another document
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WHAT LANGUAGE IS USED TO
CREATE HYPERTEXT? Hypertext Markup Language: the
language used to write web pages
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
<head>
<title>Warren G. Harding - Wikipedia, the free encyclopedia</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta name="generator" content="MediaWiki 1.16alpha-wmf" />
<link rel="apple-touch-icon" href="http://en.wikipedia.org/apple-touch-icon.png" />
<link rel="shortcut icon" href="/favicon.ico" />
<link rel="search" type="application/opensearchdescription+xml" href="/w/opensearch_desc.php" title="Wikipedia (en)" />
<link rel="copyright" href="http://creativecommons.org/licenses/by-sa/3.0/" /
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WHAT IS A PLUG-IN? A program that works WITH the web
browser to display multimedia.Flash JavaQuicktime
Typically not a stand-alone program
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