Plated wire memory is a variation of core memory developed by Bell
Laboratories in 1957. Its primary advantage was that it could be
machine-assembled, which potentially led to lower prices than the
Instead of threading individual ferrite cores on wires, plated wire
memory used a grid of wires coated with a thin layer of iron-nickel
alloy (called permalloy). The magnetic field normally stored in the
ferrite core was instead stored on the wire itself. Operation was
generally similar to core, but could also be built with a
non-destructive read that did not require refreshing.
Plated wire memory has been used in a number of applications,
typically in aerospace. It was used in the
^ Tomayko, James. "Chapter Four: Computers in the Space Shuttle Avionics System". Computers in Spaceflight: The NASA Experience. NASA. Retrieved 8 August 2011. ^ "The HEXAGON story" (PDF). National Reconnaissance Office. 1988.
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