https://ibmmainframes.com/topic-7-0-8850.html
JCL & VSAM -IBM Mainframes
ibm mainframesjclvsam
https://www.righto.com/2019/11/tros-how-ibm-mainframes-stored.html?m=1
TROS: How IBM mainframes stored microcode in transformers
I recently came across a Transformer Read-Only Storage (TROS) module that stored microcode in an IBM System/360 mainframe computer. This unu...
ibm mainframestrosstoredmicrocodetransformers