Also known as Interactive System Productivity Facility, ISPF/PDF
In computing, Interactive System Productivity Facility (ISPF) is a software product for many historic IBM mainframe operating systems and currently the z/OS and z/VM operating systems that run on IBM mainframes. It includes a screen editor, the user interface of which was emulated by some microcomputer editors sold commercially starting in the late 1980s, including SPF/PC.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).