Examines why computers are used less often in classrooms than in other organizations; suggests that technological innovations have never been central to national school improvement movements, and that the dominant cultural belief about teaching, learning, and proper knowledge and about the way schools are organized for instruction inhibits computer use. (Source: ERIC) Main Article Today, computers and telecommunications are a fact of life as basic as electricity. They have altered the daily work of large businesses and industry. Yet why is it that with all the talk of school reform and information technologies over the last decade, computers are used far less on a daily basis in classrooms than in other organizations? The question often generates swift objections. What about the $19.6 million Quince Orchard High School in Montgomery County (Maryland), where there are 288 computers for 1,100 students? Or the Juan Linn School in Victoria (Texas), where a computerized integrated learning system (ILS) provides instruction to 500 students and records daily their work? What about the thousands of elementary and secondary school teachers who have students work together on computers to write, tally figures, draw, and think? Are there not many experiments under way such as Apple's Classroom of Tomorrow, micro-computer laboratories, and exciting software that tutors students in academic subjects and skills? The answer to all of these questions is that such instances do exist but they are scattered and atypical among the 80,000-plus public schools across the nation, where over 2 million teachers teach over 40 million students.(n1) So why is instructional use of information technologies (computers, television, multimedia machines and software, etc.) still the exception and not the rule in American schools? The answers to this question are important in assessing claims of policymakers who argue that such technologies can fundamentally reshape schooling and entrepreneurs seeking profits in the schooling market who offer a vision of classrooms where students work three or more hours a day on computers. I will argue that the familiar excuses used to explain the snail-likepace of technological progress (insufficient money to buy machines, teacher resistance, little administrative support, and inadequate preparation for those becoming teachers) are plausible but ultimately superficial. Such explanations assume that schools are just like other places facing technological innovation. If sufficient money, support, and preparation are mobilized, computerization of classrooms will occur. I argue that there are fundamental reasons within schools as institutions that make them substantially different from businesses, industries, and other organizations.