Apple used a mechanical variant of AUI called AAUI[1] with a smaller connector. [1] https://en.wikipedia.org/wiki/Apple_Attachment_Unit_Interface https://en.wi

Apple used a mechanical variant of AUI called AAUI[1] with a smaller connector. [1] https://en.wikipedia.org/wiki/Apple_Attachment_Unit_Interface https://en.wikipedia.org/wiki/Apple_Attachment_Unit_Interfac...