Interactive Work Station With Auxiliary Microprocessor for Storage Protection
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01
This article describes an interactive work station in which a microprocessor is used to control various input/output devices and an auxiliary microprocessor is used to provide a storage protection function. Typically, microprocessor-controlled interactive work stations have a microprocessor which controls the various input/output devices, for example, display, printer, keyboard, light pen, communications, etc. Although some control code for the microprocessor will be held in a read only store, control code and data for various tasks will be stored in a read/write or random-access memory (RAM). For a proper functioning of the workstation, it is essential that the various storage locations are not corrupted. Fig.