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This article mainly introduces what PNP refers to in the windows operating system, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

The Windows operating system can automatically recognize some hardware devices and automatically install the corresponding drivers, which is called plug and play (PnP). PnP can coordinate physical devices with software device drivers and operate devices to establish communication channels between each device and its drivers.

PNP (Plug-and-Play, plug and play) is proposed by Microsoft, which means that the system automatically detects peripheral devices and boards and automatically installs device drivers so that they can be plugged in without human intervention. It is a technology that comes with Windows.

The so-called plug and play refers to the technology that the operating system automatically sets the system structure when peripherals such as PC cards in accordance with the PNP standard are installed on the computer.

When users install new hardware, they no longer have to set any jumper switches, nor do they have to configure interrupt requests (IRQ), memory addresses, or direct memory access (DMA) channels with software. Windows notifies applications of new changes in hardware devices and automatically coordinates conflicts between IRQ, memory addresses, and DMA channels.

The role of PnP is to automatically configure boards and other devices in low-level computers, and then tell the corresponding devices what they have done.

The task of PnP is to coordinate the physical device with the software device driver and operate the device to establish a communication channel between each device and its driver. Then, PnP allocates the following resources to the device and hardware: Imax O address, IRQ, DMA channel, and memory segment.

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