Computer hardware and software used for biometric identification, verification, and security; computer hardware and software used for a keypad security systems; computer software for controlling access to computers and computer programs; computer software for authenticating the users of computers and computer programs; facilities management software, namely, software to control access and security systems; integrated circuits; audio mixers; audio receivers; audio cassette recorders; audio effects processors; audio speakers; headphones; microphones; karaoke machines; computers; computer peripherals; computer software development tools; computer operating programs; computer software for use in animation and simulations; educational software featuring instruction in the field of science and engineering; computer software for use in global computer network security; computer e-commerce software to allow users to perform electronic business transactions via a global computer network; computer hardware and software for demonstrating, measuring, and reporting on natural phenomenon in the field of physics; circuit boards; electrical breadboard; electrical breadboard elements; computer software for transmitting and receiving audio over global computer network; oscilloscopes; function generators; signal generators; spectrum analyzers; galvanometers; multimeters; voltmeters; ammeters; data loggers; data acquisition units; power amplifiers; electrical power supplies; electrocardiogram monitoring instruments; transducers; electronic sensors; printed circuit boards; electronic instruments for measuring and recording parameters of electrical current