Zorro II : An IBM PC form factor card and backplane interface used with the Commodore Amiga 2000 computer in the mid 1980s. Using a 16 bit data bus.

Zorro III : A General Purpose Expansion Bus for High Performance Amiga Computers released in the early 1990's [Commodore computers]. The specification defined both the physical card size and the electrical interfaces to the card. The interfaced seems to based on the Motorola 680x0 processors [68000 processor], using a full 32 bit address bus and 32 bit data bus. Bus speed was independent of the host board. The Zorro III card was backward compatible with a Zorro II card. Side note Commodore went bankrupt in 1994, so interface bus has not been used for a number of years now.

ZWD: Zero Wire Debug is a non existent bus [in research] that uses coils inside an IC to inductively couple [test signals] to a wireless probe [flex cable with it's own coils] which than communicates with the debugger. So the IC does not need to devote any external pins to a debug bus as they are inductively coupled to the probe via the embedded coil. Proposed nets include; Tx, Rx, and Clk.

Other than that, there are no interfaces that begin with this letter, at least in recent memory.

Use the links to the different interface buses when your unsure of the exact name of the interface. The links provided both current and obsolete buses by the first letter of their common name, or by the name of the standard.

A listing of interface buses in alphabetic order. Primarily the links point to pages that describe the physical and electrical interfaces. Interface Bus protocols are only addressed in passing. The main effort is directed to the physical and electrical properties of the interface.