Data communications subsystem

摘要: A data communications subsystem operates with a main host computer having central processor and memory. The comprises: its own internal memory for storing transfer routines; autonomous dedicated to instructions control data; basic module which includes interface unit connecting plurality of front-end controllers. provides access paths the controllers resources. address pointers each whereby selected controller may from resource then execute these instructions. are stored in "command blocks" made accessible execution operations. In "non-autonomous configuration" system is used storage command blocks data. This configuration type known as broadband using high speed transmission lines connected peripherals adapter cluster an "autonomous" configuration, include, addition, added mix disk (DCDC) on disk, store-to-store (SSC) between independently processor.