The computer keeps a running tally of her purchases, and since it knows her shopping habits, it also can offer appropriate instant discount coupons for items right on the aisle she's cruising. All Ms. Lafrieniere does at the checkout counter is pay and go.
"It's fast, easy and convenient," says Ms. Lafreniere, an artist from Braintree, Mass. "I use it all the time." - Grocery Shopping Enters a New Age. там же описывается само устройство, Portable Shopping System, от Symbol Technologies.
заметка, может быть, и не самая интересная, но вот место, где она найдена - Mindfully.org - довольно достойное, много хороших материалов, которых я нигде не встречал, часто со справочным аппаратом.
