The University of California CD-ROM Information System replaces the equivalent of 260,000 books of published federal statistics with a CD-ROM-based online information system. The size of this database is currently 270 CD-ROMs (135GB). It contains 1990 U.S. census data (approximately 3,000 items of socio-economic and demographic information, including race-ethnicity, employment, income, educational level, and poverty) for every block and census tract in the U.S., as well as U.S. foreign trade data by commodity from every city in the U.S. to every country in the world. It also contains the digitized map outline boundary data for city blocks for the entire U.S. (census TIGER files).
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