Over three years students at the University of Tasmania have participated in eExaminations where they have responded to examination questions using computers. Over these three years they have made the transition from using institutional computers in laboratories to using personally owned laptops in a traditional examination hall. This innovation and transition have been paralleled and enabled by the development of a modified live operating system which preserves the fairness of the assessment process. The technical developments depended upon social innovation engineering efforts necessitated by the range of adopters amongst students and faculty. National recognition was achieved for this method which is being adopted more widely worldwide. The technical materials are available for download from www.eExams.org.