This booklet provides an overview of IST (Individualized Study by Technology) programs at small, isolated rural high schools in Alaska, which use individualized microcomputer-based courses to provide a more complete curriculum. First, a general description is given of the IST program, which utilizes teachers, traditional texts, and printed materials; microcomputer-assisted/managed instruction; and audiotape cassettes. Implementation of the four courses currently taught--Alaska history, English, developmental reading, and general math--is explained, focusing on teacher supervision, use of aides, use of the microcomputer, and materials storage. Additional sections discuss the evaluation design, pilot testing, microcomputer equipment reliability, characteristics of IST teachers, teacher training, and assistance. Study results summarized include those relating to teacher attitudes, student characteristics, course completion, student attitudes and achievement, and course costs. Major conclusions drawn from the evaluation of the 1980-81 pilot testing and projections for the program's future conclude the paper. Eight tables display pilot test evaluation data. (LMM)