This volume of proceedings of the 1990 National Educational Computing Conference (NECC) provides a record of the state-of-the-art in the use of computing in a variety of educational settings. Special sessions, panels, projects, 153 abstracts, and 44 papers are reported here on subjects including: elementary and secondary educational software, higher education applications, multimedia programs, hypermedia, ethics, computer education administration, interactive video, computer-assisted instruction, engineering, Logo, thinking skills, teacher education, video-based instruction, and networks. Tables and diagrams accompany some of the entries, and each of the papers contains its own list of references. An index of authors and other participants is also included. (DB)