16 PRINTED MATTER, NAMELY, LEAFLETS, BROCHURES, MANUALS, INSTRUCTIONAL AND TEACHING MATERIALS IN THE FIELD OF COMPUTER CONNECTIVITY SOFTWARE AND PROGRAMS USED TO ESTABLISH AND MANAGE CONNECTIONS BETWEEN A COMPUTER AND COMPUTER NETWORKS AND THE INTERNET, COMPUTER OPERATING SYSTEM SOFTWARE, COMPUTER SOFTWARE FOR TESTING, DEVELOPMENT AND CONTROL OF EMBEDDED SYSTEMS, COMPUTER SOFTWARE FOR MODELLING, ANALYSING AND BUILDING COMPUTER SYSTEMS WITHOUT TIMING ERRORS; PRINTED PUBLICATIONS, NAMELY, BOOKS, BROCHURES, MAGAZINES, LEAFLETS AND NEWSLETTERS IN THE FIELD OF COMPUTER CONNECTIVITY SOFTWARE AND PROGRAMS USED TO ESTABLISH AND MANAGE CONNECTIONS BETWEEN A COMPUTER AND COMPUTER NETWORKS AND THE INTERNET, COMPUTER OPERATING SYSTEM SOFTWARE, COMPUTER SOFTWARE FOR TESTING, DEVELOPMENT AND CONTROL OF EMBEDDED SYSTEMS, COMPUTER SOFTWARE FOR MODELLING, ANALYSING AND BUILDING COMPUTER SYSTEMS WITHOUT TIMING ERRORS