See also:

• Computers: Human+Computer Interaction  (379)

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• The Y Window System - Project writing successor of X Window System. The Y design has the following features: Network Transparency, Modularity (plug+in style: dynamically unloadable and reloadable), In+server implementation of widgets, Consistency and Themeability, Support for hardware acceleration, Better internationalisation, localisation, and accessiblity. [Open source, GPL]