April 28, 1992 1990 Census of Population and Housing Summary Tape File 1C ------------------------------ Using The CD-ROM ------------------------------ The 1990 Summary Tape File 1C software was designed to run on a computer with 640K RAM operating under MS-DOS 3.x or higher. The software was compiled with Clipper (Summer '87). There are no special display requirements. For direct access to the data files, one of the many software packages which recognize the dBASE III Plus (.DBF) format will be very useful. Users of other types of systems, such as the Apple Macintosh, have access to the files through support for ISO 9660 CD-ROMs. Please note that the retrieval software will only run on IBM-compatibles operating under MS-DOS. Type GO at the DOS prompt and ENTER. Example: L:\>go ------------------------------ Contents Of The CD-ROM ------------------------------ Volume in drive is CD90_1C DOCUMENT Directory for documentation files. These are ASCII text files containing the complete technical documentation for the data. GO.BAT Batch file to execute data retrieval software. STF1C.EXE Data retrieval software. Database Files Data Tables - see \DOCUMENT files, especially HOWTOUSE.ASC. -------------------------------------------------- STF1C0US.DBF P1 - P10 STF1C1US.DBF P11 - P12(pt. 2) STF1C2US.DBF P12(pt. 3) - P12(pt. 5) STF1C3US.DBF P12(pt. 6) - P12(pt. 8) STF1C4US.DBF P12(pt. 9) - P13(pt. 1) STF1C5US.DBF P13(pt. 2) - P19 STF1C6US.DBF P20 - P35 STF1C7US.DBF P36, H1 - H20 STF1C8US.DBF H21 - H40 STF1C9US.DBF H41 - H55 Reference Files STF1STRU.DBF This file describes the structure of the first 67 fields in the STF1C0 segment. These are the identification fields. TABLES.DBF This file describes the numeric data tables. DNAMES.DBF This file contains a list of Tribal Designated Statistical Areas. UNAMES.DBF This file contains a list of Urbanized Areas. MNAMES.DBF This file contains a list of MSA/CMSA's. RNAMES.DBF This file contains a list of American Indian Reservations. VNAMES.DBF This file contains a list of Alaska Native Villages. ANAMES.DBF This file contains a list of Tribal Jurisdiction Statistical Areas. Index Files STF1CMUS.NDX The key fields are SUMLEV + STATEFP + CNTY STF1CLUS.NDX The key fields are SUMLEV + STATEFP + LEFT(ANPSADPI,1) DNAMES.NDX The key field is LEFT(ANPSADPI,1) UNAMES.NDX The key field is LEFT(ANPSADPI,1) MNAMES.NDX The key field is LEFT(ANPSADPI,1) RNAMES.NDX The key field is LEFT(ANPSADPI,1) VNAMES.NDX The key field is LEFT(ANPSADPI,1) ANAMES.NDX The key field is LEFT(ANPSADPI,1) ------------------------------