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IrDa Abbrev. for Infrared Data Association. A nonprofit trade association providing standards to ensure the quality and interoperability of infrared (IR) hardware. IrDA typically uses direct infrared, i.e. point-to-point line-of-sight one-to-one communications. IrDa ports are found in products such as PDAs, printers, desktop adapters, notebooks, and digital cameras.

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IRDA Industrial Research and Development Authority
• Infra-Red Data Association

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