Nvidia welcomed Microsoft to the exclusive $4 trillion club as America's tech giants plow through growing demand for artificial intelligence.

Microsoft shares surged so much after hours that the tech giant joined the $4 trillion market cap club.

I love this company,” Steve Ballmer famously roared at a rally for Microsoft employees after he sweatily cavorted around the ...

Ballmer’s Windows-centric approach contrasts sharply with CEO Satya Nadella ‘s transformation strategy, which embraced cloud services and strategic acquisitions like LinkedIn.

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