HEWITT D. CRANE (1927–2008) was an American engineer best known for
his pioneering work at
* 1 Early life and career * 2 Later career * 3 Memberships and awards * 4 References * 5 External links
EARLY LIFE AND CAREER
Crane was born in 1927 in
Jersey City, New Jersey
He then developed magnetic multiaperture devices (MADs) at RCA
Sarnoff Corporation ). In order to develop magnetic
logic, Crane controlled the direction of bit flow in magnetic ferrite
memory cores . Ferrite logic circuits are inherently more stable than
vacuum tubes and transistors , draw no power when unused, and are
impervious to electromagnetic interference. In 1959, Crane introduced
the all-magnetic logic approach at the Fall Joint Computer Conference
, eventually leading to a demonstration of the world's first
all-magnetic computer in 1961. The technology was soon commercialized
by Aircraft Marine Products (AMP) Inc., under license from SRI, and
used primarily in the rapid transit system of
New York City
Assorted bottles from Ridge, the winery co-founded by Crane. Ridge Winery, which was co-founded by Hewitt Crane.
Crane's last intellectual effort was promoting the use of a cubic
mile of oil as an energy measure, and development of a manuscript on
issues related to energy development , in collaboration with
SRI-International colleagues: Ed Kinderman, and Ripudaman Malhotra.
Crane died from complications of Alzheimer\'s disease on June 17, 2008
at his home in
Portola Valley, California
MEMBERSHIPS AND AWARDS
Crane was named an
* ^ A B Markoff, John (2008-06-21). "Hewitt D. Crane, 81, Early
Computer Engineer, Is Dead".
The New York Times
* ^ Markoff, John (2005). What the Dormouse Said. Penguin. p. 70. ISBN 1101201088 . * ^ G. Taber The Judgment of Paris: California vs France pg 181-182 Simon & Schuster ISBN 0-7432-4751-5 * ^ "IEEE Spectrum: Joules, BTUs, Quads-Let\'s Call the Whole Thing Off". Retrieved 2008-06-22. * ^ Crane, Hewitt; Edwin Kinderman; Ripudaman Malhotra (June 2010). A Cubic Mile of Oil. Oxford University Press USA. ISBN 978-0-19-532554-6 . * ^ "Awards to Staff by Professional Societies". SRI International . Retrieved 2013-07-01.