dot code readers; dot code writers; voice recorders; image scanners; still video cameras; optical character readers; digital signal processors; computers; computer printers and stand alone printers with devices which information regarding sounds, images, characters and/or computer data is inputted and which converts such information into two-dimensional codes; plotters; computer programs for encoding and/or decoding sound, images, characters and/or data; spreadsheet programs; database program; word processing programs; desktop publishing programs; page layout programs; authoring programs for computer printers and stand alone printers which read or print two-dimensional codes in which sounds, images, characters and/or computer data are encoded; computer programs for waveform shaping, optical character reading, midi, musical composition, musical score writing, computer programs for operating devices which read or print two-dimensional codes in which sounds, images, characters and computer data are encoded for use in telecommunications, scientific calculation and analysis, CAD, CAM, and/or three-dimensional drawing

full line of reference books, magazines and newspapers, all in a broad range of areas; instructional manuals in the fields of consumer, educational, industrial, constructional, civil engineering, agricultural and medical goods and services