The Lincoln Terminal System (LTS) is a stand-alone computerized training device that presents high-quality visual displays and audio messages to studeents. A keyboard for student input and a variety of student-machine interactive programs are provided. The programs allow the author-instructor to evaluate numerical entries and responses to simple and compound multiple-choice questions (where a compound choice is defined to be more than one choice, ordered or unordered, from one or more lists of choices). Descriptions of LTS applications, lesson development procedures, hardware provided, and support facilities required are given. A contract history summary and a bibliography of reports published under three successive contracts supporting LTS development is provided.