You never need to go shopping for the weekly groceries. You just dial the supermarket on their vision phone. A list of departments and their numbers appears on the screen.
When you dial the food department, you will see a picture of it. The picture shows all the different food and their prices.
You give your order over the phone and it is recorded at the supermarket by a tape recorder. Later the same day the electric delivery truck arrives with your order.
Note: The devil’s in the details of course, but essentially this describes Peapod exactly.