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即插即用

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即插即用(Plug and Play,中国大陆作即插即用,台湾作随插即用,简称“PnP”)是一种电脑硬件术语,指在电脑加上一个新的外部装置时,能自动侦测与配置硬件资源(如I/O地址、DMAIRQ),而不需要重新配置或手动安装驱动程式。现代的“即插即用”一词又加上了热插拔的意义,它允许用户在电脑电源开启的状态下,直接新增或移除硬件装置,例如USB

“PnP”一词最初指ISA总线的一个附属功能。后来的PCIACPI已纳入PnP技术。

PnP需要配合支持的硬件及软件。近年的电脑主板BIOS已全面支持;第一个支持PnP的的操作系统是微软Windows 95,乃至最新的Windows皆支持PnP。

装置需求

一台PnP兼容的电脑必须满足下列三个要素:

  1. 操作系统必须兼容PnP
  2. BIOS必须支持PnP
  3. 要安装的装置本身必须是PnP装置

接口

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即插即用
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