Zorro expansion cards, such as, RAM expansions, SCSI controllers and graphic cards. However the standard does not put a limit on the number of devices. In the A2000, two Zorro II slots are aligned with ISA slots. The Zorro bus and ISA bus can be connected by means of a "bridgeboard", such as, the Janus Hardware Emulator, which allows emulation of Intel 80286 or 80386 systems. Zorro III is the 32 bit auto-configuring expansion bus of Amiga 3000 and Amiga 4000 systems. From the A3000 design onwards, it was deemed desirable for all enumerable hardware expansions to use Autoconfig. It is OS-legal for non-Autoconfig hardware to be completely ignored and the standard was adopted in AmigaOS 3.1. Notation In early Commodore documents it was styled Auto Configuration, auto-config or AutoConfig, whereas in later documents it was styled AUTOCONFIG. References External links Amiga Hardware Manufacturer ID Registry Amiga AmigaOS Computer buses Computer configuration