Version 1

This C80 computer program was written by ICPSR to retrieve and print data items from the 1980 Census Summary Tape Files (STFs). Development of the program was supported by a grant from the Administration on Aging, United States Department of Health and Human Services, which was seeking easy-to-use software for utilization by its state and area agencies on aging. C80 is written in Fortran IV and includes its own database dictionary for the STF 1 data files. This software can access any of the separate state or national data files from the STF 1 series, and can retrieve from them any combination of data items and geographical entities contained in those files. Output options include several forms of printed tables as well as logical record length data files. C80 automatically checks the "suppression flags" included in the STF 1 data files and recodes the relevant suppressed tabulations upon output. Code for the program and related materials are available as 10 separate files. The C80 program only accesses STF 1 files from the 1980 Census Summary Tape File series and cannot be used with other Summary Tape Files.