Data processing system with independent peripheral sub-processors - has memory assigned to main processor and inbuilt memories in sub-processor modules

摘要

A data processing system uses peripheral units controlled by separate sub-processor units. The system enables the main processor to operate at high data rates, while the sub-processor operate at much lower levels. The main processor (3) operates together with an associated memory (4) and communicates with sub-processor modules (7) with built-in memories. Data exchanges occur (5) with peripheral control units (6) complete with input/output keyboard and displays (11). The peripheral control modules are coupled to a printer (12) and tape reader (13). Typically the main data bus (8) can operate at Mbyte/sec rates, while the sub-processor buses (5) operate at approximately 30 kbyte/s.