electronic transaction processing and data transfer microcomputers; printers for use with a broad range of electronic transaction processing and data transfer devices; and computer systems, namely, computer software and hardware for downloading data to and uploading data from point-of-sale terminals

maintenance services in the field of electronic transaction processing and data transfer systems, namely, microcomputer hardware, interface products and peripheral devices

manufacturing of product lines in the field of electronic transaction processing and data transfer

providing consulting, product support consultation, product development and design services in the field of electronic transaction processing and data transfer;