Can I help you?
Yes, I'm interested in this computer. Can you give me some information about it?
Certainly. It has 1 gigabyte of memory. The screen is 15.4 inches ....
How big is the hard drive?
100 gigabytes.
Hmm. Has it got a CD burner?
Yes.
And how much does it weigh?
1.2 kilos.
And how much does it cost?
It costs $1,600.
Hmm. And this one ...?