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Data Processing Terminal Emulation on Word Processor Display - Inhibiting Interrupts During Large-Scale Screen Updating

IP.com Disclosure Number: IPCOM000042064D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 2 page(s) / 21K

Publishing Venue

IBM

Related People

Hunt, GT: AUTHOR [+3]

Abstract

In the present-day text or word processing environment, the operator often requires access to a host data processor through a low cost data link for data processing and records capability. An original solution to this problem was to utilize both a text processor and a separate data display terminal, such as the IBM 3278, which was compatible with the data processor. However, with the integration of data processing and text processing capability into an overall office systems environment, the field is advancing in the direction of utilizing the display terminal associated with the text processing system as an output terminal for the host data processor.

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Data Processing Terminal Emulation on Word Processor Display - Inhibiting Interrupts During Large-Scale Screen Updating

In the present-day text or word processing environment, the operator often requires access to a host data processor through a low cost data link for data processing and records capability. An original solution to this problem was to utilize both a text processor and a separate data display terminal, such as the IBM 3278, which was compatible with the data processor. However, with the integration of data processing and text processing capability into an overall office systems environment, the field is advancing in the direction of utilizing the display terminal associated with the text processing system as an output terminal for the host data processor. In such a system, operator interactive capability is provided for switching from a text processing session to a data processing session wherein the text processor emulates a data processing display terminal. In situations where display terminals operate in the data processing display mode, it is important to prevent excessive interrupts during large-scale link buffer writing or updating activities. The present apparatus provides a simple expedient wherein the cursor interrupt/enable circuitry is used for the function of inhibiting interrupts during this large-scale link buffer writing activity. The state of the cursor is controlled by a bit in a control register. Normally, the cursor is turned off...