Electrical and scientific magnetic, electronic, and optical recorders, namely, digital data recorders; magnetic, electronic and optical digital voice recorders, namely, digital voice recorders; blank digital storage devices, namely, magnetic, electronic and optical tapes, discs, and smart cards; personal digital assistants; magnetic, electronic and optical digital data readers, namely, digital data readers; personal locator systems consisting of global positioning transmitting locators and beepers in the nature of pagers; personal security systems, namely, personal security alarms; blank smart cards; magnetically encoded identification cards; magnetic and electronic card readers; scanners; electronic fingerprint readers; antitheft systems not for vehicles consisting of personal security alarm systems, namely, personal security alarms and burglar alarms, all sold as a unit; computer hardware for personal identification verification to control access; software for personal identification verification to control access; antihijacking devices for airplanes, namely, security mechanisms in the nature of biometric readers that identify users of airplanes and allows authorized users to access an aircraft and restricts access to unauthorized users