This issue presents an overview of research in computer-based language instruction using the PLATO IV computer system. The following articles are presented: (1) "Language Study and the PLATO system," by R. Hart; (2) "Reflections on the Use of Computers in Second-Language Acquisition," by F. Marty; (3) "Computer-Based Instruction in Elementary Hindi," by Y. Kachru and others; (4) "A Computer-Assisted Program for the Teaching of Modern Hebrew," by P. Cole and others; (5) "PLATO Sitcom Dialogs for Russian," by C. Dawson and N. Provenzano; (6) "PLATO Reaches International Students with English Lessons," by R. Dixon; (7) "Computer-Assisted Instruction in Latin and English Vocabulary Development," by R. Scanlan; (8) "PLATO Esperanto Materials," by J. Sherwood; (9) "CAI in Advanced Literature Classes," by N. Hinton; (10) "The Indiana Routing System: A PLATO Curricular Tool for Teachers," by R. Haugh and others; (11) "Computer Processing of Esperanto Text," by B. Sherwood; (12) "Technical Aspects of Computer-Assisted Instruction in Chinese," by C. Cheng and B. Sherwood; (13) "Speech Synthesis Applied to Language Teaching," by B. Sherwood; (14) "A Rather Intelligent Language Teacher," by S. Cerri and J. Breuker; (15) "An Evaluation of Computer-Assisted Instruction in English Grammar Review," by W. Oates; (16) "Computer-Based Analysis of Individual Learning Characteristics," by C. Curtin and others; and (17) "Learning Characteristics of the Disadvantaged: Implications for CAI Lesson Design," by S. Campanini. (AMH)