Complex sentence: The Commissariat à l'énergie atomique et aux énergies alternatives operates the Tera 100 machine in the Research and Technology Computing Center in Essonne, Île-de-France, which has a peak processing speed of 1050 teraflops, the fastest in Europe.
Split into simpler sentences: The Commissariat à l'énergie atomique et aux énergies alternatives operates the Tera 100 machine in the Research and Technology Computing Center in Essonne, Île-de-France. The Tera 100 has a peak processing speed of 1050 teraflops, making it the fastest supercomputer in Europe.