The first thing a UPS driver picks up each day is a handheld compute r called a Delivery Information Acquisition Device (DIAD), which can access a wireless cell phone network. As soon as the driver logs on, his ar her day's route is downloaded onto the handheld. The DIAD also automaticalIy captures customers' signatures along with pickup and delivery information. Package tracking information is then transmitted to UPS's compute r network for storage and processing. From there, the information can be accessed worldwide to provide proof of delivery to customers ar to respond to customer queries. It usualIy takes less than 60 seconds from the time a driver presses "complete" on the DIAD for the new information to be available on the Web.