This is a black and white image of a Williams tube display.
Verso paper sticker: " SWAC (called ZEPHYR) First storage of 512 bits. _ SWAC's memory 1949."
Date
1949 ca.
Dimensions
overall: 8 in x 10 in
Copyright Holder
Unknown
Category
Photograph
Subject
SWAC (Standards Western Automatic Computer); Zephyr