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How SCO's Unix contract suit became a threat to Linux, fractured over evidence and copyright ownership, and ended in a 2021 settlement.
IBM announced its Red Hat agreement on October 28, 2018 and closed it July 9, 2019 for $190 cash per share and roughly $34 billion equity value.
How IBM's rushed 5150 became a cloneable platform—and why published interfaces, an independent BIOS, and DOS all mattered.
IBM launched the 5150 in August 1981 with an unusually modular design whose documentation and suppliers helped create the PC-compatible market.