This study was designed to examine computer based instruction in the 9-12 public high school. All high schools included in the study were part of the original Digital High School grants, and had a student population of over 1000 students. The purposes of the study were to examine factors affecting technology implementation, to explore how teacher attitudes, expertise, and cultural and pedagogical beliefs affected adoption, to determine how critical staff development and resources were in successful implementation, and to investigate organizational variables that were in place for successful adoption of computer based instruction. The study was conducted using Everett Rogers' five stages of the innovation-decision process. Nine technology coordinators were interviewed for this study. Following the interviews, 13 categories emerged and a grounded theory was formed. The study concluded with five recommendations for practitioners who would like to successfully implement technology on their school sites.