Computer hardware and software to facilitate on-line commercial and purchasing transactions, namely - software and hardware to perform on-line verifications of credit card and other types of non-cash transactions, offering online catalogs, real-time automated purchase and sale, encryption and authentication of electronic information, on-line security, on-line auctioning, supply chain management, strategic business consulting, on-line information databases, on-line research services; sound systems consisting of radios, amplifiers, speakers, cassette players, cd players; radio telephones; cellular telephones; radio transceivers and accessories therefor, namely batteries, battery chargers, cigarette lighter adapters; mouse pad