IBM System X was part of IBM. IBM System X referred to a series of servers that were equipped with the x86 processors. The IBM X Series, also written by some as the IBM xSeries, was part of a larger family. The brothers and sisters of the xSeries were the IBM Series I, IBM Series P, and now the IBM Power Series. The xSeries was the main component of the IBM System Cluster 1350. The company division that was responsible for the xSeries was sold to Lenovo on October 1, 2014. What began as an IBM PC Server now lives on as System X. In between there are names such as Netfinity and eServer xSeries. But as everyone knows, names are smoke and mirrors. If you look at the system itself, you can see that the system is now based on the AMD Opteron and thus offers high performance at a good price. Especially in modular data centers and in the rack design, the System X is able to cope with the respective requirements of the individual company. The strength and thus the price can be adjusted according to the situation. A purchase is not a one-off decision for the rest of your life, but a platform that can grow with the growing company.