Designed for use in Trident Technical College's Secretarial Science Instructional Lab, this learning module provides self-instructional lessons and self-tests to teach students to operate the IBM 3741/3742 Data Entry Station using most of the features of the machine. Each module focuses on one or more characteristics of the machine, providing learning objectives, illustrations, detailed explanations and instructions, exercises, and a self-test and answer key. The 15 lessons focus on definitions of word processing terminology; handling and caring for the IBM 3742's diskette; the uses of data set labels; special keys and features of the machine; recording and altering records on a diskette; loading programs from the diskette; and operating the IBM 3742's disk 2 drive station from the disk 1 station. In addition, a brief description of the Secretarial Science In addition, a brief description of the Secretarial Science Instructional Lab is provided, which examines its purpose, operations, equipment, independent study opportunities, testing center functions, and benefits. (AYC)