Symbolics “MacIvory”: PCB Photographs. Loper OS

This post concerns the “MacIvory” Model 3 Lisp Machine. It is of interest strictly to bolixologists. Click on a photo to see detailed version. Machine chassis: The Ivory NuBus Board Set (i.e. the LispM itself, the Mac Quadra is otherwise ordinary): “Ivory” NuBus board, component-side: What’s under the labels? Bolix Label Part Notes 115999-B PLUS20L8 PAL, 14 inputs, 8 outputs, no registers 116000-B PAL22V10-10P PAL, 12 inputs, 10 macrocells, can have registers 116001-B PAL22V10-10P PAL,…

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