The Windows operating system can automatically identify certain hardware devices and automatically install the corresponding drivers. This is called: Plug and Play (PnP). PnP can match physical devices with software device drivers and operate the devices, establishing a communication channel between each device and its driver.
PNP (Plug-and-Play) was proposed by Microsoft, which means that the system automatically detects peripheral devices and boards and automatically Installing device drivers so that they can be used immediately without manual intervention is a technology that comes with Windows.
The so-called plug-and-play refers to the technology that allows the operating system to automatically set the system structure when a PC plug-in card and other peripheral devices that comply with the PNP standard are installed into the computer.
When users install new hardware, they no longer need to set any jumper switches or configure interrupt requests (IRQs), memory addresses, or direct memory access (DMA) channels in software. Windows will provide the application with The program notifies the hardware device of new changes and automatically reconciles conflicts between IRQs, memory addresses, and DMA channels.
The function of PnP is to automatically configure the boards and other devices in the low-level computer, and then tell the corresponding devices what they have done.
The task of PnP is to match physical devices with software device drivers, operate the devices, and establish a communication channel between each device and its driver. Then, PnP allocates the following resources to devices and hardware: I/O addresses, IRQs, DMA channels, and memory segments.
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