Data processing system including a program-executing secondary s

Details Data processing system including a program-executing secondary s Data processing system including a program-executing secondary s

1976-06-07

1979-04-10

Thomas, James D.

Boots, shoes, and leggings

G06F 1516, G06F 900, G06F 1106

Patent

active

041492447

ABSTRACT:
Disclosed is a primary data processing system comprised of, for example, a main store, a storage unit, an instruction unit, an execution unit, a console unit and a channel unit for performing primary system programs. The console unit includes a secondary digital computer for performing secondary programs which functions to observe and/or alter the primary system. The functions performable by the secondary system include altering the primary system control state, causing primary commands to be executed, controlling primary data and addresses, and scanning out primary information. The console is connected through a command bus, an address bus and a data bus to the controls and data paths of the channel unit, of the instruction unit and of the storage unit.

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