in the machine room at
IBM Watson Laboratory at Columbia University, first floor,
612 West 116th
, New York City, about 1955. In this view we
are looking at the Watson Lab
. Left to right: an IBM Type 412 or 418 Accounting Machine
(which is a
for use with the CPC), a Type 527 High-Speed Punch, and a Type 605 Calculator
(which is a 604
specially designed for use with the CPC). Behind the accounting machine and
left of the punch, near the window, is a 941 Storage Unit (relay memory).
Later this room would house an
and a 1620
Photo from the collection of Eric Hankam.