Editing Plug and play (section)

== ISA and PCI self-configuration==
In time, many [[Industry Standard Architecture]] (ISA) cards incorporated, through proprietary and varied techniques, hardware to self-configure or to provide for software configuration; often, the card came with a configuration program on disk that could automatically set the software-configurable (but not itself self-configuring) hardware. Some cards had both jumpers and software-configuration, with some settings controlled by each; this compromise reduced the number of jumpers that had to be set, while avoiding great expense for certain settings, e.g. nonvolatile registers for a base address setting. The problems of required jumpers continued on, but slowly diminished as more and more devices, both ISA and other types, included extra self-configuration hardware. However, these efforts still did not solve the problem of making sure the end-user has the appropriate software driver for the hardware.

ISA PnP or (legacy) Plug & Play ISA was a plug-and-play system that used a combination of modifications to hardware, the system BIOS, and operating system software to automatically manage resource allocations. It was superseded by the [[Peripheral Component Interconnect|PCI]] bus during the mid-1990s.

The PCI plug and play (autoconfiguration) is based on the PCI BIOS Specification in 1990s, the PCI BIOS Specification is superseded by the [[ACPI]] in 2000s.