Do you know much about computers?

A: Do you know much about computers?

B: Not a great deal.

A: I've just been reading an article about them.  They are used for all sorts of things now.

B: For accounting systems and things you mean?

A: Yes, but they're used for other things too. Do  you remember when we went to

    buy our tickets for the flight to  Greece?

B: Yes.

A: The man asked where we wanted to go, then he  typed out the information on a form

    and waited for a reply. A few moments later he gave us our  tickets.

B: Of course. His machine must have been connected  to a computer.

A: That's right.