The PLATO IV computer-based educational system contains its own communications hardware and software for operating plasma-panel graphics terminals. Key echoing is performed by the central processing unit: every key pressed at a terminal passes through the entire system before anything appears on the terminal's screen. Each terminal is guaranteed…

This report reviews and interprets activities carried out at the Center for Studies in Education and Development, Harvard Graduate School of Education, in support of the Information System for Vocational Decisions (ISVD) over a three year period. Included here are the contents, development, use so far, and potential of three specific datafiles…

The collection of selected papers of Joseph T. Impellitteri reprints in full, or excerpts from, 46 unpublished position and conference papers, research and program proposals, and project reports, and from 20 published articles, chapters from edited collections, bulletins and special studies which Impellitteri authored or co-authored. The papers…