Fidelity National Information Services Inc. has announced the availability of its high-volume FIS Profile core processing system for the IBM System z operating system.

The Jacksonville, Fla., vendor said Wednesday that it would target the world's top 50 banks and other financial institutions that use System z, the flagship operating system for mainframe computers made by International Business Machines Corp. in Armonk, N.Y.

Suited for continuous, high-volume operation, System z integrates modern computer technologies such as Internet protocols with backward compatibility to predecessor systems originating in the 1960s.

FIS Profile, a real-time core system, has been optimized and benchmarked for more than 100 million accounts on System z, Fidelity said.

"Offering this application on the IBM mainframe platform creates a compelling solution for institutions that are consolidating platforms and operations or upgrading to a real-time infrastructure," Frank Sanchez, the president of Fidelity's strategic solutions unit, said in a press release.

Hundreds of financial institutions in 25 countries use FIS Profile for core processing, Fidelity said.