Flex machine
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What links here
PERQ
ZOG (hypertext)
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Guide (hypertext)
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Timeline of hypertext technology
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Timeline of operating systems
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List of file formats
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Windowing system
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Xerox Alto
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List of operating systems
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James Gosling
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Mach (kernel)
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History of the graphical user interface
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Graphical user interface
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Three Rivers PERQ
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