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The NVDA Design & Technology

• Mostly written in Python - allows for rapid development
• NVDA has a modular, object oriented architecture
• App Modules can add specific support for applications
• NVDA Objects can add support for specific controls or windows
• Virtual buffers allow NVDA to display complex documents
• Some components are written in C++ to make complex processing faster
• Abstract design allows seamless integration of multiple APIs
• A myriad of accessibility and native APIs can be supported together