Source : Free On-Line Dictionary of Computing

Streaming SIMD Extensions
     
         (SSE) {Intel Corporation}'s {floating point}
        {SIMD} extention of their {Pentium} {microprocessor}
        architecture.  SSE was formerly know as KNI (Katmai New
        Instructions).  It was introduced with the {Pentium III}.
     
        {Intel Pentium III
        (http://developer.intel.com/design/pentiumiii/prodbref/)}.
     
        {ipoem (http://www.ipoem.com/technology/Docs/pentium4.html)}.
     
        (2003-07-13)