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There was also a small adapter box for the Apple Mac II and Mac Quadras with Apple Desktop Bus (ADB) connection. One could use then the Symbolics keyboard and the three button mouse (made by Logitech) with the MacIvory, a Lisp Machine on a Nubus board, and use it with the Genera OS running inside a Mac.

Sounds like a midrange system.

Symbolics did not use fiber optics; you are probably thinking the TI Explorer.

Right, Symbolics also support long cables, but they were not optical cables, like those of TI.