Tablet computers; handheld personal computers; personal digital assistants; calculators and calculating machines; scientific calculators; electronic calculators; educational software, namely, children's educational software, educational software featuring instruction in mathematics; computer software for data exchange between electronic devices; computer software for use as a spreadsheet and in graphing; computer software for a personal computer for use in achieving data exchange between a personal computer and a wrist watch or a digital camera and other electronic apparatus and instruments; computer software, namely, point of sale (POS) and software to run cash registers, handheld calculator emulator software, and software used in the field of math education, namely, to create spreadsheets, for graphing, and for working on differential equations, and financial educational software for use in teaching algebra, Laplace Transforms/Fourier Transforms, namely, complex mathematical equations, differential equations, geometric graphing; educational instruments devices in the nature of interface devices, namely, computer network interface devices, electronic display interfaces, peripheral component interface (PCI) hardware for communications between calculators and computers; personal computers; computer hardware components, namely, electronic components for computers and computer peripherals; printers for computers; batteries; AC adapters; battery chargers; USB cables; connection cables, electric cables; memory cards; memory units, namely, memory boards and memory cards; multi-media software recorded on CD-ROMs featuring mathematic and mathematic instruction topics; carrying cases and bags specially adapted to carry electronic calculators, personal digital assistants and handheld personal computers; electronic pens; multimedia projectors; data analyzers, namely, electronic instruments in the nature of logic analyzers; electronic motion sensors; electronic personal organizers; digital cameras; printers for digital cameras; liquid crystal display television sets; navigation apparatus for vehicles in the nature of on-board computers, satellite-aided navigation systems, car navigation apparatus; cellular telephones; electronic label printers; radio pagers; radios; compact disk players; apparatus for recording, transmitting or reproducing sound or images; recorded music discs, namely, musical recordings on discs, pre-recorded digital video discs featuring music and mathematics instruction, pre-recorded DVDs featuring movies; educational software featuring instruction in mathematics and calculators; software for use in performing, displaying and transmitting calculations using scientific calculators; software for accessing and using a cloud computing network; downloadable cloud computer software for use in database management and use in electronic storage of data; computer software for using cloud-based applications, data and services; structural parts and fittings for all the foregoing