Английский язык: Сборник текстов и упражнений. Иваненко Т.И. - 19 стр.

      IV. Answer the following questions.
      1. How many technical services does the Internet provide?
      2. Does the mail service ensure that the message arrives intact at the correct address?
      3. How does Telnet allow you to establish a terminal session with a remote computer?
      4. What do you use to copy a file from a remote host to your computer?
      5. Is there any difference between uploading and downloading? Point it out.
      6. What is the last Internet service?

     V. Change the following sentences into the Passive Voice.
     1) The Internet provides a large number of technical services.
     2) However, you can also transfer files from your computer to a remote host.
     3) Your Gopher client displays a menu for you.
     4) When you make a selection from the menu, the client connects to the appropriate server
– no matter where it is on the Internet – and procures the service you requested.
     5) The mail service reliably transmits and receives a message.

      VI. Read, translate and entitle the text.
      The abbreviation MUD means Multiple User Dimension. It is a computer program that pro-
vides a virtual reality. To participate in a MUD, you telnet to a MUD server, take on a role, and
explore. If you do this, you interact with other users who are playing their own roles. In other
words, a MUD allows you to exercise your fantasies and pretend, just like visiting a singles bar.

      VII. Think and say:
      A) Describe four important services in the Internet. Begin with: “As far as I know, four
important services in the Internet are…» B) Explain what the terms “downloading” and “upload-
ing” refer to.




LESSON 7

                   THE FINGER SERVICE [FINGERING THE WORLD]

       An explained above a client/ server system consists of two programs: a client that requests
a particular resource and a server that provides that resource. In many cases the client and the
server programs run on different computers allowing you to access a remote host. The Finger
Service is a client / server system that provides three main types of information.
       (1) You can display certain public information about any user on an Internet host. What
you see will vary from host to host. Some hosts, indeed, will not display any information about
their users. All you need to know is which host a person uses, and either their userid, first name
or last name. With this information you can use the Finger Service to display some of the follow-
ing: the person’s userid, the person’s full name, if the userid is currently logged in, the last time
someone logged in using that userid, whether or not mail has been read, a phone number, an of-
fice location, information that the person has specifically prepared for the general public.
       (2) The Finger Service is used to check to see who is currently using an Internet host. You
can display a summery that shows some or all of the following information for each userid that is
logged in: userid, full name, when the userid logged in, how long it’s been since there was activi-
ty on that terminal, phone number and office information, name of computer or terminal server
from which the person logged in.
       (3) This use of the Finger is to communicate with certain Internet hosts that have been set
up to offer other, more esoteric types of information. One host, for example, will return current
information about storm activity.
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