time-sharing
[タイムシェアリング] ; [タイムシェアリングシステム][Cloud computing][The Heralds of Resource Sharing], a 1972 film.[History of CP/CMS], IBM's virtual machine operating system (CP) that supported time-sharing (CMS).[IBM M44/44X], an experimental computer system based on an IBM 7044 used to simulate multiple virtual machines.