the code name for IBM's MainFrame Computer released during the period 2003 - 2005
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Saber
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Mamath
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T-Rex
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Swordfish
C
Correct answer
Explanation
IBM's mainframe computer code-named 'T-Rex' was released during the 2003-2005 period as part of their zSeries server line. The T-Rex codename represented the power and dominance of IBM's mainframe technology in enterprise computing. Other options like Saber, Mamath, and Swordfish are not associated with IBM mainframe releases from this era.