These documents may be located on a nearby computer system or on one halfway around the world. The references appear as underlined and colored text and /or images on the Web page. To access the referenced material, all you do is click on the highlighted text or image. A link is automatically made to the computer containing the material, and the referenced material appears. Communication is the most popular Internet activity. The impact of electronic communication cannot be overestimated. At a personal level, friends and family can stay in contact with one another even when separated by thousands of miles. At a business level, electronic communication has become standard and many times preferred way to stay in touch with suppliers, employees, and customers.
You can communicate with anyone in the world who has an Internet address or e-mail account with a system connected to the Internet. All you need is access to the Internet and an e-mail program. Two of the most widely used e-mail programs are Microsoft's Outlook Express and Netscape's Navigator.
Suppose that you have a friend, Anny, who is going to the University of Southern California. You and Anny have been planning a trip for the upcoming break. You have heard there are some inexpensive airfare deals online. To save money, you and Anny agree to research these offers and e-mail each other your findings.
A typical e-mail message has three basic elements: header, message and signature. The header appears first and typically includes the following information:
Addresses: Addresses of the persons sending, receiving, and, optionally, anyone else who is to receive copies.
Subject: A one-line description, used to present the topic of the message. Subject lines typically are displayed when a person checks his or her mail-box.
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