Chapter 7

Module 7A Understanding the Internet Module 7B Using email Chapter 7

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

Introducing the Internet: The Network of Networks Understanding the Internet Introducing the Internet: The 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. Module A Looking for a radio station? Try Live Radio on the Internet, which lists more than 1500 live Internet radio stations worldwide.

Introducing the Internet Understanding the Internet Introducing the Internet A galactic network Internet address or IP address Internet service provider (ISP) Interoperability cross-platform network Module A LANs and computers connected to the Internet are maintained by corporations, ISPs, and universities who sell Internet subscriptions to the public.

Introducing the Internet Understanding the Internet Introducing the Internet Leave the lower layers to the LANs & WANs Internet vs. online services AOL Module A Forty percent of home Internet users access the Internet through America Online (AOL).

Introducing the Internet Understanding the Internet Introducing the Internet Module A

Introducing the Internet Understanding the Internet Introducing the Internet The Internet’s history importance of communication & socializing from ARPNET to Internet rise of a new mass medium Module A To learn more about Internet history visit the Internet Society’s Internet Histories page.

Internet Software Internet service client & Server A Understanding the Internet Internet Software Internet service client & Server Module A Netscape Navigator and Microsoft Internet Explorer are the two leading browsers.

Exploring Internet Services Understanding the Internet Exploring Internet Services Electronic mail (Email): Staying in touch World Wide Web (WWW): Accessing information hypertext hyperlinks URL Module A Big Bad Voodoo Daddy site is an example of a site that features hypertext

Exploring Internet Services Understanding the Internet Exploring Internet Services FTP: Transferring files FTP downloading & uploading anonymous FTP compression software Usenet: Joining online discussions standard newsgroups alt newsgroup biz newsgroups Module A Learn the rules of netiquette by visiting Emily Postnews, the authoritative voice concerning Usenet manners.

Exploring Internet Services Understanding the Internet Exploring Internet Services IRC: Text chatting in real time Internet Relay Chat (IRC) Internet telephony: Real time voice & video More Internet services Internet paging MUDs telnet ping Archie, Gopher, Veronica Module A To get started with IRC, visit the IRChelp.org Help Archive.

How the Internet Works: A Geography of Cyberspace Understanding the Internet How the Internet Works: A Geography of Cyberspace Configuring your computer for Internet access Accessing the Internet shell access dial-up access with point-to-point protocol (PPP) cable and satellite access LAN access Module A

How the Internet Works: A Geography of Cyberspace Understanding the Internet How the Internet Works: A Geography of Cyberspace Internet Service Providers (ISPs) Backbones Internet protocols (TCP/IP) Internet protocol (IP) transmission control protocol (TCP) Module A 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”

How the Internet Works: A Geography of Cyberspace Understanding the Internet How the Internet Works: A Geography of Cyberspace Domain Name System (DNS) gov edu mil com net Module A 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.

The Internet Intranets: Using TCP/IP inside the enterprise Understanding the Internet The Internet Intranets: Using TCP/IP inside the enterprise extranets Future of the Internet more Internet addresses more bandwidth Module A

Using Email Email Fundamentals Introducing Email Clients Composing, Receiving, & Forwarding Email Managing Email Mailing Lists Using Email Responsibly Module B

Email Fundamentals Email servers & clients ISP User B Server Client Using Email Email Fundamentals Email servers & clients ISP Module User B Server Client 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.

Email Fundamentals Email addresses have 3 parts Email protocols Using Email Email Fundamentals Jsmith@jamestown.edu Email addresses have 3 parts mailbox name jsmith at sign @ server address jamestown.edu alias bounce message Email protocols SMTP MIME POP IMAP Module B

Introducing Email Clients Using Email Introducing Email Clients Module B Getting an account free email service Setting up your email client Among the most popular free e-mail services are Angelfire, Hotmail, and Yahoo! Mail.

Introducing Email Clients Using Email Introducing Email Clients Exploring your email client’s window folder list message list message window Module B Although email programs vary, they all look and work much the same way.

Composing, Receiving & Forwarding Email Using Email Composing, Receiving & Forwarding Email Module B Logging on to the mail server Receiving mail Replying directly to the author Replying to all A dialog box prompts you for your password before you can access your email account

Composing, Receiving & Forwarding Email Using Email Composing, Receiving & Forwarding Email Module B The composition window Composing email Forwarding email

Composing, Receiving & Forwarding Email Using Email Composing, Receiving & Forwarding Email Module B Attachment icon 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

Managing Email Organizing your mail Filtering incoming mail Using Email Managing Email Organizing your mail Filtering incoming mail Dealing with unwanted mail (Spam) Module B Custom folders for a college student might include various classes, friends, and family members.

Mailing Lists Subscribing to a mailing list Using Email Mailing Lists Subscribing to a mailing list Participating in a mailing list Unsubscribing flames (angry letters) Module B To find a mailing list in a subject that interests you, try “Mailing Lists on the Net,” Liszt, and “Publicly Accessible Mailing Lists”

Using Email Responsibly Using email at work Backup tapes Additional risks Module B For an update on the latest email and other Internet hoaxes, see the U.S. Department of Energy’s “Internet Hoaxes” page

Using Email Responsibly How to stay out of trouble Do not use company email for personal use Never respond to junk email (spam) Never use email to harass or intimidate When using company’s email, never say anything you wouldn’t want your boss to see Module B