E-Mail
Figure 32.1 shows the life of an e-mail message, from its composition by the e-mail sender to its receipt by the e-mail recipient. Trace the path of the message. Notice the various pieces of equipment involved, services, and software applications.Figure 32.1. Life of an e-mail message.
WHAT DO YOU KNOW?
| 1 | Who is User 1's Internet service provider (ISP)? |
A1:
| Earthlink |
| 2 | What is User 1's e-mail address? |
A2:
| user1@earthlink.net |
| 3 | Who is User 2's ISP? |
A3:
| AOL |
| 4 | What is User 2's e-mail address? |
A4:
| user2@aol.com |
| 5 | What small piece of equipment is inside User 1's computer that allows her computer to connect to a phone line or cable or satellite? |
A5:
| the modem |
| 6 | What is a server? |
A6:
| a computer, faster and larger than most individual users' computers |
| 7 | What symbol in an e-mail address tells you that it is an e-mail address rather than a Web site address? |
A7:
| the @ ("at") symbol |
| 8 | Which of the following best summarizes the path of User 1's e-mail message to User 2? The message goes out of User 1's e-mail program through a phoneline (or other connection):
(a) to AOL to Earthlink to User 2's computer(b) to Earthlink to AOL to User 2's computer(c) direct from User 1's computer to User 2's computer(d) to AOL to User 2's computer
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A8:
| (b). When User 1 clicks the "Send" button, the message goes through the modem, through the phone line (or cable or other connection) to Earthlink's (her Internet service provider's) server. That server reads the address and sends it through the Internet to AOL. The message waits on an AOL server until User 2 connects to AOL to get the mail waiting there for him. |
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TERMS RELATED TO E-MAIL
ISP
Internet service provider; a company that provides users with a connection that allows them to send and receive e-mail and browse the Internet; examples of a few of the thousands of ISPs are AOL (America Online), MSN, Earthlink, and esva.netserver
also called "host"; a computer through which other computers connect to the Internetmodem
a piece of hardware in a computer or attached to it to which a phone line, cable, or wireless transmitter/receiver is connected and through which a connection to the Internet is established and maintainedT1, DSL, cable, wireless
types of connections to the Internet; T1 and DSL refer to fast types of telephone lines; cable refers to high-speed cable, similar to television cable; wireless refers to a satellite connectione-mail
electronic maile-mail client or program
the e-mail software program used by individual e-mail users; the most popular mail programs are Eudora, Microsoft Outlook, Netscape Communicator, and the e-mail client used by America Online@
"at"; the symbol in an e-mail address that indicates that it is, indeed, an e-mail address; it is located between the user's identification and the name of the Internet service provider |
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