The Internet

E-Mail

• Address
  • Internet Protocol (IP) address
    • Every server connected to the Internet has a 4 parts IP address. For example: 140.147.248.7
  • Domain Name System (DNS)
    • For convenience, the DNS was created to associate each numerical IP address with an abbreviated name. For example the IP address 140.147.248.7 has an easier to remember DNS : www.loc.gov.
      • Top level domain -- It appears at the end of an address; in the DNS www.loc.gov, gov is the top level domain. The top level domain identifies the types of organizations; for example:
        • .arts Artistic and cultural institutions
        • .edu Educational and research sites
        • .firm General businesses
        • .com Commercial (business) sites
        • .gov Government nonmilitary sites
        • .info Information services
        • .int International organizations
        • .mil U.S. military branches
        • .org Nonprofit organizations
        • .net Network organizations, network access providers
        • .nom Individuals
        • .rec Recreation, entertainment
        • .store Online shopping services
        • .web Web-related activities
        • .us Country code for the United States
      • Subdomain -- it identifies the location of the mail server (or the host). For example:
        • lcweb.lc.gov-- This Library of Congress DNS tells us where the server lcweb is actually located. lc is the Library of congress.
      • Server name (host name) -- the name of the Internet computer.
  • E-Mail address -- example;
    • president@whitehouse.gov
    • An e-mail address is separated by the @ sign into two parts; the username on the left of the @ sign, and the server name (or host name) and domain name on the right of the @ sign.
• Functions of e-mail programs
  • Display incoming mails
  • Save mails
  • Print mails
  • Reply to a mail
  • Compose and send new mails
  • Import/export mails

You may get a free email account from All the free email you'll ever need!