IBM's decision is a huge win for Gov. JB Pritzker, who has for years sought to make Illinois a global leader in quantum computing and innovation. The announcement comes a day after the City Council gave the multibillion-dollar quantum computing campus final zoning approval.

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The Illinois Quantum and Microelectronics Park, a groundbreaking computer research development planned for the former U.S. Steel site on the city’s South Side, has lined up another major tenant. Backed by a new $25 million state grant,