We're doing Mainframe modernizations/integrations with the cloud @Mechanical Orchard. It's been really fun to see and learn the entomology of how computing got

We're doing Mainframe modernizations/integrations with the cloud @Mechanical Orchard. It's been really fun to see and learn the entomology of how computing got to where it is today. As other folks have described programming on the mainframe is about learning COBOL + JCL. I would also add that you need to understand how to read/write binary files according to a defined schema (Copybook) and encoding (EBCDIC, COMP, COMP-3, COMP-5). It's also helpful to deeply understand the intricacies of Db2 and different methods of connection (ODBC, JDBC, Db2 CLI). I've even gone so far as to write an ODBC extension for DuckDB so that we can scan and process queries faster and with less MIPS usage. https://github.com/rupurt/odbc-scanner-duckdb-extension https://github.com/rupurt/odbc-scanner-duckdb-extension https://www.mechanical-orchard.com https://www.mechanical-orchard.com