Based on published statistics and on information collected by Quality Education Data (QED) during telephone calls to every United States school district in 1981-82, 1982-83, and 1983-84 (including all intermediate units and subdistricts of large school districts), this publication presents in tabular form information on the size of the microcomputer marketplace and the types of organizations involved in it; availability of software by microcomputer brand name; the number of publishers producing software for the home; bestseller home education software packages; types of data collected by QED; growth patterns in school ownership of microcomputers; microcomputer brands owned by schools; shifts in brand ownership; the effect of student enrollment, relative community wealth/poverty, instructional dollars per pupil, type of school (urban, suburban, and rural), percentage of minority students, and level of school (elementary, junior, and senior high) on level of school district and/or school ownership of microcomputers; the expansion of microcomputer use in elementary schools; the effect of school enrollment versus expenditure on presence of microcomputers; which brand owners are more likely to purchase software; the centralization of software coordination in school districts; units of microcomputer brands owned by schools; the number of schools who have enough micros to support networking; characteristics of the top 50 districts in terms of microcomputers per school; the number of students per microcomputer and number of microcomputer units by state; spending of Education Consolidation and Improvement Act (ECIA) Chapter 2 federal funds; and use of video for instruction in schools. (ESR)