Computers are everywhere and are always on. Computers replace telephones.
Computers replace TVs.
Every appliance in your house has an Internet Protocol number. According to Nortel , there's no reason why the information can't come into your home or office along with the regular electricity supply. To buy , you'll research the product online and run to the store to pick it up. Or you'll see and touch it in the store and take out your handheld computer to buy the product cheaper online. You can probably understand that with books.