Electronic circuits; Electronic integrated circuits

Electronic systems and components: audio headphones, digital to analog conversion, analog to digital conversion, voltage regulators, current sources, power supplies, computer software for digital audio

computer software for website development, multimedia presentation, namely, presentation of still or animated video graphics and pictures and/or sound, database management, detection and warning of software viruses, all in the fields of computers, software, electronics and telecommunications; multimedia educational software for instruction in electronics and software development and science topics; audio speakers