Not Assigned; Digital Input; Digital Output; Analog Input; Analog Output; Totalizer Input.

未指定；数字输入；数字输出；模拟输入；模拟输出；累积输入。

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The migration from old fashioned printing presses to digital output represents another large opportunity for HP.

FORBES: The Beating Heart of Hewlett-Packard Makes A Case For Relevance

Digital output helps protect against radio and electromagnetic interference, which can cause audio problems with microphones mounted on computer displays.

ECONOMIST: Noise-cancelling technology

Akustica, based in Pittsburgh, Pennsylvania, puts a MEMS microphone complete with the circuitry needed for digital output into a package less than 5mm square.

ECONOMIST: Noise-cancelling technology