Original sentence: 2000: IBM shipped its first 64-bit ESA/390-compatible mainframe, the zSeries z900, and its new z/OS operating system.Microsoft releases the Xbox 360 game console which use the 64-bit, triple-core Xenon PowerPC processor manufactured by IBM.features 64-bit EM64T Xeon processors in their new Mac Pro and Intel XServe computers, and later updates the iMac, MacBook and MacBook Pro to use EM64T Core 2 processors
Edited sentence: 2000: IBM shipped its first 64-bit mainframe, the zSeries z900, and its new z/OS operating system — culminating history's biggest 64-bit processor development investment and instantly wiping out 31-bit plug-compatible competitors Fujitsu/Amdahl and Hitachi.Microsoft releases the Xbox 360 game console which use the 64-bit PowerPC Xenon manufactured by IBM.features 64-bit EM64T Xeon processors in their new Mac Pro and Intel Xserve computers, and later updates the iMac, MacBook and MacBook Pro to use EM64T Core 2 processors