(communications)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
Users can send a mail message to a single recipient or to multiple users. In addition, JPEG photos as well as any other type of computer file may be attached to the message (see e-mail attachment). Mail is sent to a simulated mailbox in the organization's mail server until it is downloaded to the "in" mailbox in the user's computer.
The Messaging System and the Client
An e-mail system requires a messaging system, which is primarily a store and forward capability based on the Internet's Simple Mail Transfer Protocol (SMTP). A mail program (e-mail client), such as Windows Mail, Mac Mail, Outlook and Eudora, provides the user interface for mailboxes and send and receive functions. Popular e-mail services such as Gmail and Yahoo Mail are Web based, in which case the Web browser is used as the mail program (see e-mail interfaces).
The Internet Changed It All
The Internet revolutionized e-mail by turning countless incompatible islands into one global system. Initially serving its own users, in the mid-1990s, the Internet began to act as a mail gateway between the major online services such as CompuServe and America Online (AOL). It then became "the" messaging system for the planet. In the U.S., Internet mail is measured in the trillions of messages each year. See e-mail vs. fax, messaging system, instant messaging, read receipt and self-destructing e-mail.
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| Could They Have Imagined Spam? |
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| When they sent this first message in 1971, could they have imagined the trillions of e-mail messages that would follow in years to come? (Image courtesy of Dan Murphy, www.opost.com/dlm) |
The First E-mail on the Internet
In 1971, the first e-mail message was typed into the Teletype terminal connected to the Digital Equipment PDP-10 toward the back of the room in the following picture. The message was transmitted via ARPAnet, the progenitor of the Internet, to the PDP-10 in front. Dan Murphy, a Digital engineer, took this photo in the Bolt, Beranek and Newman datacenter. See ARPAnet.
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| Could They Have Imagined Spam? |
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| When they sent this first message in 1971, could they have imagined the trillions of e-mail messages that would follow in years to come? (Image courtesy of Dan Murphy, www.opost.com/dlm) |
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