The Pentium(R) processor with MMX/sup TM/ technology
Mooly Eden, M. Kagan · 2002
Intel's MMX/sup TM/ technology is designed to accelerate multimedia and communications software. The Pentium(R) processor with MMX/sup TM/ technology (design code name P55C) is the first micro-processor to implement the new architecture, enabling the use of the new MMX/sup TM/ technology instruction set.