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Published January 11, 2013, 12:00 AM

Counting on the mainframe

South Dakota state government’s accounting system runs on a mainframe computer system that dates back to the 1980s. Upgrades over the years have provided employees with a Windows interface, but the custom system requires users to have detailed knowledge of the millions of records it contains. The system first put in place in 1980 was overhauled in 1987 and periodically upgraded afterward. (Photo courtesy of the S.D. Bureau of Finance and Management)

Read the article: Opening up the state's books