Virtual Machine/Conversational Monitor System


Virtual Machine/Conversational Monitor System

(operating system)(VM/CMS) An IBM time-sharing andpersonal computing environment executing under Virtual Machine (VM) in a virtual machine environment. VM/CMS isdesigned to support large numbers of interactive users. Itrelies on numerous APIs into the Control Program (CP) toprovide very efficient single-user processing

VM/CMS was only adopted some time after the original design ofVirtual Machine as a more efficient personal computingenvironment than MVS/TSO.