Sun Microsystems' Solaris will become the third operating system to take advantage of Advanced Micro Devices' 64-bit Opteron processor. "Solaris, Sun's version of Unix, already runs on 32-bit "x86" processors including AMD's Athlon and Intel's Xeon. But Sun also will release a version in 2004 that will take advantage of the 64-bit extensions that make Opteron different from those other chips, Sun software chief Jonathan Schwartz told reporters in a meeting here Thursday."

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