![[Index]](../images/index.gif)
![[Contents]](../images/toc_d.gif)
![[Help]](../images/help_d.gif)
![[Retrace]](../images/retrace_d.gif)
![[Browse <]](../images/prev.gif)
![[Browse >]](../images/next.gif)
The name given to the Amiga bus specification. "Zorro I" refers to the original design for A1000 backplane boxes, "Zorro II" refers to the modification to this specification used for the A2000 and compatible backplanes, and "Zorro III" refers to the Zorro II compatible bus specification first used in the Amiga 3000 computer.