Jay
Forrester - Core Memory
Jay
Forrester invented core memory in 1949 that became the dominant form of
computer memory in the 1950s, and remained in use until the late 1970s.
According to public lecture given
by Philip Machanick at the University of the Witwatersrand:
"A magnetic material can
have its magnetization altered by an electric field. If the field isn't
strong enough, the magnetism is unchanged. This principle makes it possible
to change a single piece of magnetic material -- a small doughnut called
a core -- wired into a grid, by passing half the current needed to change
it through two wires that only interesect at that core."
Jay
Forrester Jay Forrester was a pioneer in early
digital computer development and invented random-access, coincident-current
magnetic storage - National Inventors Hall of Fame.
Jay
Forrester Robert Everett and Jay Forrester
were pioneers in the development of early digital computer equipment
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