Images(3)

Board, Circuit

Object number2016.96.10

Manufacturer Westinghouse Electric Corporation

Manufacturer C. P. Clare and Company

Date1966

MediumMetal; Plastic

Credit LineGift of James Sutherland

DescriptionRectangular computer circuit board.DimensionsLength x Width x Depth: 10 × 6.25 × 0.875 in. (25.4 × 15.9 × 2.2 cm)
MarksMost of the components have text printed on them.

Top side has text in the top left corner "2 AP / 2 AP 5" and "SEP 20 '66" and raised text in the bottom left corner "2AP / 743A357".

Each blue rectangular component has gray text "MR2MX-1001 / C / MICROCLAREED RELAY / C.P. CLARE & CO. CHICAGO".

The gold metal component has label with text "MERCURY WETTED CONTACT RELAY / C CLARE HGS2MT5001 UP / C.P. CLARE & CO. CHICAGO".

Underside has raised silver text in the top right corner "743A357 2AP" and red text at right center "169217".
Historical NotesP-50 input-output. Information goes into the system and out of the system through this type of board. Twenty or thirty of these boards in a process control system. Part of a collection of materials that document the early development of computer technology at Westinghouse where donor James Sutherland was an engineer. Sutherland was a design engineer for computers at Westinghouse in the 1960s. He earned a degree in electrical engineering, served in the United States Air Force, and then began to work for Westinghouse in 1959. He worked in the logic group and designed the Control and Indexing Units for the Westinghouse PRODAC-IV (Programmed Digital Automatic Controller). The computer used NOR logic elements, developed by Westinghouse’s Buffalo plant, to run. With permission Jim took parts of these computers home and eventually built a home computer called ECHO IV (Electronic Home Computing Operator), it is now in The Computer Museum in Boston. ECHO IV was recognized as the first home computer by the Annals of Computing History and The Computer Museum in Boston.

Previous owner James F. Sutherland

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