answer: #Person1# and #Person2# talk about the fields where computers have been used and take their experience of buying a ticket as an example.
documents: #Person1#: Do you know much about computers?
  #Person2#: Not a great deal.
  #Person1#: I've just been reading an article about them. they'll be used for all sorts of things now.
  #Person2#: For accounting system and things like that, you mean?
  #Person1#: Yes, but they are used for other things, too. Do you remember when we went to buy a ticket for the flight to Paris.
  #Person2#: Yes?
  #Person1#: The man asked where we want to go, then he type out the information on the form and waited for a reply. A few moment later, he gave us two tickets.
  #Person2#: Of course, his machine must have been connected to a computer.
  #Person1#: That's right.