Intelligent data processing terminal having an interlock system

Details Intelligent data processing terminal having an interlock system Intelligent data processing terminal having an interlock system

1979-09-25

1981-01-13

Malzahn, David H.

Boots, shoes, and leggings

371 53, G06F 946, G06F 302

Patent

active

042453089

ABSTRACT:
A set-up store is added to an intelligent data processing terminal for storage of terminal characterizing information therein. Terminal characterizing information includes a representation of installed terminal features and a representation of selected terminal options. The information is changeable by the operator to indicate new installed features or different selectable options.
A system of interlocks safeguards against improper operator actions, as follows: An interlock prevents the entry of inaccurate terminal characterizing information. Another interlock disables normal terminal operation if terminal characterization information is not present in the set-up store. A security lock prevents unauthorized entry of terminal-characterizing information. An interlock disables operation of language-unique keyboard keys until a keyboard language has been entered. Another interlock prevents the selection of terminal options unless the installed terminal features are present in the set-up store.

REFERENCES:
patent: 3375499 (1968-03-01), Ghiron et al.
patent: 3955180 (1976-05-01), Hirtle
patent: 3997875 (1976-12-01), Broeren
patent: 4195344 (1980-03-01), Yamazaki
patent: 4200913 (1980-04-01), Kuhar et al.
Andrews et al. "Upper/Lower Case & Keyboard Redefine Feature for Word Processor & Electronic Keyboard Character Translation Redefinition" IBM Tech. Discl. Bulletin, vol. 19, No. 8, 1-'77, pp. 2853-2855.
Quinlivan "On-board Backup Supply Protects Volatile RAM Data" EDN Magazine, vol. 23, No. 7, Apr. '78, pp. 120-122.
"User-Programmable Display Terminals Adapt to Special Needs" Computer Design, vol. 17, No. 5, May '78, pp. 36-38.

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