comparative display of standard wire contacts and later IBM ASCC-Mark I contacts
Date: 1929-1938
Inventory Number: 1997-1-0239
Classification: Computer Part
Subject:
Maker: International Business Machines Corporation (1911-present)
User: Harvard Computation Laboratory (1944 - 1997)
Cultural Region:
Dimensions:
8.4 × 39.1 × 11.5 cm (3 5/16 × 15 3/8 × 4 1/2 in.)
Bibliography:
A Manual of Operation for the Automatic Sequence Controlled Calculator
Description:
Two types of wire contacts on the same base. One has wires running between them, gathered in a bundle. The other is more compact and has casing on the wire bundle.
A coil on the smaller instrument cluster has the number "59580," and the ones on the larger cluster have the numbers "118874" and "111350."
A coil on the smaller instrument cluster has the number "59580," and the ones on the larger cluster have the numbers "118874" and "111350."
In Collection(s)
Signedunsigned
Curatorial RemarksCard reads:
"Left"
WIRE CONTACT
12, 6, and 4 pole
designed about 1938
"Right"
STANDARD
12 and 2 pole
designed about 1929
"Left"
WIRE CONTACT
12, 6, and 4 pole
designed about 1938
"Right"
STANDARD
12 and 2 pole
designed about 1929
ProvenanceAiken Computation Laboratory; transfer to CHSI, 1997.
