Wholesale and retail services provided through direct solicitation by sales agents; through distributorships; and by computerized on-line retail services, featuring automatic identification, data collection, and data storage apparatus, including data printing and bar code reading devices, namely, electronic label and tag printers, bar code readers, scanners, and imagers; hand-held light pens and wands including signal multiplexers for coupling a plurality of bar code readers to a computer; batteries, battery chargers and dischargers; interconnect cables; signal interface modules and units; power supplied laser scanners; contact and non-contact scanners; concentrators and protocol converters for providing bidirectional data communications between a plurality of bar code readers and printers and a host computer; or, integrated terminal devices having keyboards for providing data to a central data base, such terminals also processing and scanning indicia containing bar codes and other symbology; electronic controllers for machining and assembly of machines; hand-held data collection computer terminals, portable programmable bar code readers, and hand-held scanners with a keypad and display; radio frequency identification interrogators; wireless scanners, terminals, and interrogators; computer programs recorded on magnetic, optical and other media for use with bar code readers software; manufacturing execution software for machining and assembly machines; and software for automatic data collection and storage; paper and other related indicia carrying media, namely paper stock for carrying pre-printed human and machine readable data; coated paper labels and tags all the foregoing for use in WAN, LAN and business enterprise-wide applications