What is s390x?

s390x is a processor architecture that is mainly used in mainframe computers, particularly those manufactured by IBM. It is an evolution of the earlier s390 architecture that was introduced in the 1980s. The "x" in s390x stands for "extended" and refers to the increased address space and architectural improvements that were made in this version.

s390x processors are known for their reliability, security, and scalability. They are designed to handle large workloads and are commonly used in mission-critical applications such as banking, insurance, and healthcare. s390x processors are capable of running multiple operating systems simultaneously, including Linux, z/OS, and z/VM.

Overall, s390x is a powerful and specialized architecture that is optimized for high-performance computing applications and is particularly well-suited for large-scale enterprises that require extreme reliability and security.