Chapter

7

Chapter

Module 7A Understanding the Internet

Module 7B Using email

7

7

Understanding the Understanding the InternetInternet

Introducing the Internet Internet Software Exploring Internet Services How the Internet Works Intranets The Future of the Internet

ModuleA

7

ModuleA

Introducing the Internet: Introducing the Internet: The Network of NetworksThe Network of Networks

The Internet is the first mass medium that involves computers and uses digitized data. It’s much more interactive than TV, radio, or newspapers.

Understanding the Internet

Looking for a radio station? Try Live Radio on the Internet, which lists more than 1500 live Internet radio stations worldwide.

7

Introducing the InternetIntroducing the Internet

A galactic networkInternet address or IP addressInternet service provider (ISP)

Interoperabilitycross-platform network

AModule

Understanding the Internet

LANs and computers connected to the Internet are maintained by corporations, ISPs, and universities who sell

Internet subscriptions to the public.

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Introducing the InternetIntroducing the Internet

Leave the lower layers to the LANs & WANs

Internet vs. online servicesAOL

AModule

Understanding the Internet

Forty percent of home Internet users access the Internet through America Online (AOL).

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Introducing the InternetIntroducing the Internet

AModule

Understanding the Internet

7

Introducing the InternetIntroducing the Internet

The Internet’s historyimportance of communication &

socializingfrom ARPNET to Internetrise of a new mass medium

AModule

Understanding the Internet

To learn more about Internet history visit the Internet Society’s Internet Histories page.

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Internet SoftwareInternet Software Internet serviceclient & Server

AModule

Understanding the Internet

Netscape Navigator and Microsoft Internet Explorer are the two leading browsers.

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Exploring Internet ServicesExploring Internet Services Electronic mail (Email):

Staying in touch World Wide Web (WWW):

Accessing informationhypertexthyperlinksURLA

Module

Understanding the Internet

Big Bad Voodoo Daddy site is an example of a site that features hypertext

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Exploring Internet ServicesExploring Internet Services FTP: Transferring files

FTPdownloading & uploadinganonymous FTPcompression software

Usenet: Joining online discussionsstandard newsgroupsalt newsgroupbiz newsgroups

AModule

Understanding the Internet

Learn the rules of netiquette by visiting Emily Postnews, the authoritative voice concerning Usenet manners.

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Exploring Internet ServicesExploring Internet Services IRC: Text chatting in real time

Internet Relay Chat (IRC) Internet telephony: Real time voice & video More Internet services

Internet pagingMUDstelnetpingArchie, Gopher, Veronica

AModule

Understanding the Internet

To get started with IRC, visit the IRChelp.org Help Archive.

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How the Internet Works: How the Internet Works: A A Geography of CyberspaceGeography of Cyberspace

Configuring your computer for Internet access Accessing the Internet

shell accessdial-up access with point-to-point protocol (PPP)cable and satellite accessLAN access

AModule

Understanding the Internet

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How the Internet Works: How the Internet Works: A A Geography of CyberspaceGeography of Cyberspace Internet Service Providers (ISPs) Backbones Internet protocols (TCP/IP)

Internet protocol (IP)transmission control protocol (TCP)

AModule

Understanding the Internet

Looking for an ISP? A good place to start is The List that currently lists nearly 5,000 service providers.

Explore the Internet’s physical structure at “An Atlas of Cyberspace”

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How the Internet Works: How the Internet Works: A A Geography of CyberspaceGeography of Cyberspace

Domain Name System (DNS)govedumilcomnet

AModule

Understanding the Internet

See for yourself how the domain name service operates. Access the NSLOOKUP page and type in a domain name such as www.microsoft.com. Click the Run button, and you’ll see the IP

address below.

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The InternetThe Internet

Intranets: Using TCP/IP inside the enterpriseextranets

Future of the Internetmore Internet addressesmore bandwidth

AModule

Understanding the Internet

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Using EmailUsing Email

Email Fundamentals Introducing Email Clients Composing, Receiving, &

Forwarding Email Managing Email Mailing Lists Using Email Responsibly

ModuleB

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Email FundamentalsEmail Fundamentals Email servers & clients

BModule

Using Email

An e-mail server runs on your ISP’s computer. When you send mail, the server sends your mail over the Internet. An e-mail

client runs on your computer and enables you to read and reply to received messages, compose new ones, and forward mail.

UserISP

Client Server

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Email FundamentalsEmail Fundamentals Email addresses have 3 parts

mailbox name jsmithat sign @server address jamestown.edualiasbounce message

Email protocolsSMTPMIMEPOPIMAP

ModuleB

Using Email

Jsmith@jamestown.edu

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Introducing Email ClientsIntroducing Email Clients

Getting an accountfree email service

Setting up your email client

ModuleB

Using Email

Among the most popular free e-mail services are Angelfire, Hotmail, and Yahoo! Mail.

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Introducing Email ClientsIntroducing Email Clients

Exploring your email client’s windowfolder listmessage listmessage window

ModuleB

Using Email

Although email programs vary, they all look and work much the same way.

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Composing, Receiving & Composing, Receiving & Forwarding EmailForwarding Email

Logging on to the mail server Receiving mail Replying directly to the author Replying to all

ModuleB

Using Email

A dialog box prompts you for your password before you can access your email account

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Composing, Receiving & Composing, Receiving & Forwarding EmailForwarding Email

Composing email Forwarding email

ModuleB

Using Email

The composition window

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Composing, Receiving & Composing, Receiving & Forwarding EmailForwarding Email

ModuleB

Using Email

When you receive a file that has an attachment, you’ll see an icon informing you that there’s more to the message than text alone

Attachment icon

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Managing EmailManaging Email Organizing your mail Filtering incoming mail Dealing with unwanted mail (Spam)

ModuleB

Using Email

Custom folders for a college student might include various classes, friends, and family members.

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Mailing ListsMailing Lists

Subscribing to a mailing list Participating in a mailing list Unsubscribing

flames (angry letters)

ModuleB

Using Email

To find a mailing list in a subject that interests you, try “Mailing Lists on the Net,” Liszt, and “Publicly Accessible

Mailing Lists”

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Using Email ResponsiblyUsing Email Responsibly

Using email at work Backup tapes Additional risks

ModuleB

Using Email

For an update on the latest email and other Internet hoaxes, see the U.S. Department of Energy’s “Internet

Hoaxes” page

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Using Email ResponsiblyUsing Email Responsibly

How to stay out of troubleDo not use company email for personal useNever respond to junk email (spam)Never use email to harass or intimidateWhen using company’s email, never say anything

you wouldn’t want your boss to see

ModuleB

Using Email