DSi

DSI may refer to:

• Data storage interrupt, the name used for a segmentation fault on PowerPC-based processors
• Data Stream Interface, computer network protocol to run Apple Filing Protocol over TCP
• Delay slot instruction, a term from computer architecture
• Digital Signal Interface, a protocol for controlling of lighting in buildings
• Disparity Space Image, a data structure used in computer stereo vision
• Display Serial Interface, a serial protocol for mobile display devices
• Distributed Systems Interface, a bus protocol to interconnect multiple remote sensor and actuator devices to a central control module
• Diverterless supersonic inlet, a type of jet engine air intake

The is a dual-screen handheld game console released by Nintendo. The console launched in Japan on November 1, 2008, and worldwide beginning in April 2009. It is the third iteration of the Nintendo DS, and its primary market rival is Sony's PlayStation Portable (PSP). The fourth iteration, entitled Nintendo DSi XL, is a larger model that launched in Japan on November 21, 2009, and worldwide beginning in March 2010. Development of the DSi began in late 2006, and the handheld was unveiled during an October 2008 Nintendo conference in Tokyo. Consumer demand convinced Nintendo to produce a slimmer handheld with larger screens than the DS Lite. Consequently, Nintendo removed the Game Boy Advance (GBA) cartridge slot to improve portability without sacrificing durability.