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Home Page Products and Servies: Internet
Information: Technical Support:
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Popular Internet Services Each of the protocols described in this section requires two pieces for the service to function.
HTTP - Hypertext Transfer Protocol is used to distribute information on the Web by moving from document to document and indexing within documents. HTTP is a powerful protocol because it is fast and extremely versatile.
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E-mail - Electronic mail (or e-mail) is a service that allows one user of
the Internet to send a message to another user of the Internet. Each message is placed in
the recipient's mailbox so that the recipient can read them at their convenience. It is
possible for text and graphics to be sent via electronic mail.
Telnet - A UNIX
command or software tool that allows you to log on to a remote computer. Users of the
Internet rely on this protocol to execute programs on another computer system. Telnet is
now available for most operating systems.
FTP - The File Transfer
Protocol is used for transferring files from one computer to another computer. FTP sites
do not provide a menu system that users who visit the site can easily see what information
is there. Users are provided a list of filenames available at that site. Files cannot be
viewed while at the site; they must be downloaded and read at a later time.
Archie - Using
Archie, users of the Internet can search FTP file archives easily using keywords.
Gopher - This
technology is a menu-based structure using text prompts to assist users in the search for
information. This technology is being superseded by the World Wide Web.
WAIS - A search
retrieval system of indexed databases on the World Wide Web. The databases can contain any
type of file, including text, sound, graphics, and even video.
Listservs - Internet
mailing lists, usually referred to as Listservs, are collection of e-mail messages that
address specific topic or interests. Messages are collected at a single site and then mass
e-mailed to users who subscribe to the particular lists.
Newsgroups - Similar
to Listservs, newsgroups are collections of e-mail messages that relate to a specific
topics. Unlike Listservs, someone posts a message that others respond to. Then the person
who posted the message responds to the responses, and so on, creating a string of related
messages that can become quite long. 
World Wide Web (WWW) - Created
to serve the physics research community specifically with ease of use and of document
interchange in mind. In 1989, Tim Berners-Lee of the European laboratory for Particle
Physics (CERN) proposed the web as a way for scientist around the world to share
information. This is the current hot topic on the Internet.