PREFACE This paper was prepared by the Institute for Defense Analyses (IDA) for the Defense Information Systems Agency under the task order, Ada Technology Insertion, and fulfills an objective, to perform a survey of high order languages currently used in the Department of Defense. This paper was reviewed by the following IDA research staff members: Dr. Alfred E. Brenner, Dr. Dennis W. Fife, Dr. Richard J. Ivanetich, Dr. John F. Kramer, and Dr. Dale E. Lichtblau. The authors would like to acknowledge Ms. Jean Sammet for providing many suggestions on improving the data collection form. Ms. Sammet's knowledge of programming languages and their versions was most helpful. Ms. Linda Brown, Ms. Joan McGarity, and Mr. Don Reifer also provided guidance for conducting the survey. The survey respondents should also be thanked for taking time to complete and return the data collection form.