General Electric B162149-A  
Written by Accutron on 2017-02-01  

The B162149-A is a logic card from a GE-645 mainframe, the first system designed to run MIT's Multics operating system. The GE-645 was a variant of the GE-635, specially modified to run Multics by increasing the address space to allow for virtual memory. Unlike many systems developed in the late 1960s, the GE-645 was constructed almost entirely from discrete components.

The uncharacterized circuit card pictured here was originally part of a GE-645 installed at Bell Labs. Special thanks to Bill Eaton for donating this rare piece of computing history.

GE B162149-A circuit card.

B162149-A circuit card, enlargement of components.

This article is part of the [Logic & Memory Circuits] exhibit.

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