Presents a detailed discussion of the data collected on calculator and computer use in schools in 20 countries. The document includes discussion of: (1) school policy on calculator use; (2) description of populations A (8th grade students) and B (12th grade students) in the United States; (3) uses of calculators in subjects other than mathematics; (4) type and frequency of teacher use of calculators; and (5) student uses and attitudes. The data indicates there was limited use made of calculators by Population A. More Population B students than Population A students made use of the calculator. Neither population made much use of the computer. Attitudes were found only slightly more positive than negative toward using calculators and computers. (PK)