9 Mobile computers; tablet computers; computer hardware; Radio-frequency identification (RFID) readers; Radio-frequency identification (RFID) tags; printers; printheads; scanners; optical imagers; barcode scanners; cameras; industrial robots; Mobile computer batteries; tablet batteries; printer batteries; scanner batteries; Carrying cases, covers, and cradles for mobile computers, tablets, scanners, and printers; Heat, light, and time-sensitive non-paper labels embedded with chemical indicators activated by the environment for monitoring the condition and tracking the pedigree of perishable products for determining freshness, potency, sell-by dates, and use-by dates; chemical or environmental readers for monitoring, providing information on and tracking the condition of perishable goods for determining freshness, potency, sell-by dates, and use-by dates; Time-temperature sensitive data loggers comprised of labels, electronic devices, and indicators, not for medical purposes, that monitor and provide machine readable variable environmental, supply chain tracking, and product authentication information about perishable products