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Definition: PowerOpen

A standard for a Unix-based operating system running on PowerPCs from the former PowerOpen Association. Founded in 1991, the goal was to create shrink-wrapped PowerPC applications, which would run under any PowerOpen-compliant OS. Since IBM's AIX was already a shrink-wrapped Unix for the PowerPC, the need for different Unix operating systems became less important, and the association disbanded in 1995. See Unix and Apple-IBM alliance.