Electronic apparatus and instruments for use in teaching, and personal computing equipment for use therewith, namely computers, keyboards, interactive electronic white boards and associated electronic pens and pads and handheld transmitters and receivers of data; display apparatus and light projectors, namely slide projectors, projection and display screens, and video monitors; electronic graphic tablets and keypads; computer software recorded on electronic data carriers, and computer software downloadable from on-line databases, all such software for use in teaching, training and education comprising a generic software tool set for development and interactive presentation of lessons and lectures; electronic encryption units; wireless computer peripherals and wireless telephones; children's educational software; audio tape, digital video and event recorders; data processors; disc storage containers; blank integrated circuit cards for recording, transmitting and reproducing sound and images in mobile telephone services; audio, stereo and video receivers; signal processors; radio and telephone transmitters; handheld wireless receivers and transmitters; children's educational interactive multimedia software; light emitting diode displays; flat panel display screens; liquid crystal displays; computer hardware; computers; computer peripherals; computer keypads; computer operating programs