Artifact Details

Title

Nixdorf 820/23 Rod Cell Memory Board

Catalog Number

X613.85

Type

Physical object

Date

1969 ca.

Manufacturer

Nixdorf

Place Manufactured

Germany

Identifying Numbers

Model number 820/23
Serial number 381 55060

Dimensions

overall: 3/8 in x 8 3/4 in x 7 1/2 in

Description

Board with small plastic tubes - many wires thread around the tubes. Rods passing through the holes could sense the state of each bit depending on how the board had been handwired. Handwritten on orange sticker on board is "MBA". This is one half of the memory unit - the other half would consist of matching ferrite rods with their own windings.

Category

Memory: other

Subject

mechanical; magnetic

Lot Number

X613.85