This report contains the data and results of a study conducted in each of the five Department of Defense Dependents Schools worldwide concerning uses of and attitudes about computers in the classroom. Questionnaires were distributed to 6,850 students in grades 5 to 12 and to 543 computer-based instruction (CBI) project teachers. Highlights of the analyses of the responses from 3,851 students and 522 teachers included the following: (1) students exhibited mildly positive overall attitudes about computers with males displaying more positive attitudes than females in grades 5 and 6, and those with non-school access to computers more positive attitudes than their peers; (2) teachers were uniformly positive about computers across regions, grade levels, genders, and school sizes, and they agreed that computers contributed to student creativity and productivity, as well as to increased teacher productivity; (3) teachers expressed a need for more inservice on how to take advantage of whole-group and small-group instruction with computers; (4) top inservice needs cited were learning what other teachers are doing, finding out what software is available, and learning how best to integrate computers into their classrooms; and (5) the optimal student-to-computer ratio was reported to be two to four students at a computer, varying according to subject areas such as computer literacy or writing that might require more individual use of a computer. Data are reported in both narrative and tablular formats. The appendices contain guidelines and a checklist for regional project coordinators participating in the survey, the questionnaire and anecdotal record forms for teachers at CBI demonstration sites, and the student questionnaire. (DB)