Dynamic generation and overlaying of graphic windows for multipl

Boots – shoes – and leggings

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340734, G06F 300, G06F 700, G06K 1518

Patent

active

045557756

ABSTRACT:
A graphic terminal is disclosed using bitmaps to represent plural overlapping displays. Graphics software is also disclosed in which the overlapping asynchronous windows or layers are manipulated by manipulating the bitmaps. With this software, the physical screen becomes several logical screens (layers) all running simultaneously, any one of which may be interacted with at any time.

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patent: 4450442 (1984-05-01), Tanaka
"The Smalltalk-80 System" by Xerox Learning Research Group, Byte Publications, Inc., vol. 6, No. 8, Aug. 1981, pp. 36-47.
"The Smalltalk Graphics Kernel" by D. H. H. Ingalls, Byte Publications, Inc., vol. 6, No. 8, Aug. 1981, pp. 168-194.
"The Smalltalk Environment" by L. Tesler, Byte Publications, Inc., vol. 6, No. 8, Aug. 1981, pp. 90-147.

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