Seems that COBOL still used, only because the existence of
dbase systems supported by those mainframes :
Connecting to a DB2 database by using COBOL
https://www.ibm.com/docs/en/wdfrhcw...ns-connecting-db2-database-by-using-cobol-pli
- BS2000 produced by Siemens (1970) acquired by Fujitsu https://www.theregister.com/2022/02/25/fujitsu_signposts_the_end_for/
- OS/2200 produced by Unisys Corporation (1967), still using old version of COBOL... The mentioned 'ClearPath' is just an eclipse IDE.
- AS/400 produced by IBM (1988) still updating the COBOL now days. On AS/400 user can write COBOL or RPG language_(by IBM)
- Z produced by IBM (2006) is using z/OS allows user to develop on C , C++, COBOL, PL/I Fortan -- https://www.ibm.com/products/zos
dbase systems supported by those mainframes :
- IBM DB2 (widely used) https://www.ibm.com/products/db2
- IMS https://www.ibm.com/products/ims
- Adabas https://en.wikipedia.org/wiki/ADABAS
Connecting to a DB2 database by using COBOL
https://www.ibm.com/docs/en/wdfrhcw...ns-connecting-db2-database-by-using-cobol-pli