METHOD AND APPARATUS FOR COMMUNICATING DEVICES EACH PERFORMING PREPROCESSING OPERATIONS ON DATA AUTONOMOUSLY OF THE CENTRAL PROCESSOR

摘要

Communicating devices in a data processing system operate in a data-altering mode to perform processing operations autonomously of the central processor. The operations are performed within limits prescribed by broad-function parameters from the central processor, thus relieving the central processor of preprocessing operations. Each device issues discrete instructions comprising an operation part and a store address part for performing operations on data items supplied by the device itself, as well as on data in the system store.