When a cash register clerk at the grocery store drags a box of cereal across the scanner, a laser beam scans a bar code printed on the packaging to identify the item and find its price in the store's database. A bar code is a row of bars of... Recent Article published on 11/5/2010 by Julius Vandersteen



Read more (locally) ...


Partner : eHow


--------------------------------------------------

LOGECT Publisher Network™ (beta) is a Service that allows others to publish their syndicated content by RSS Feeds.

موضوعات مشابه: