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Ferrite magnetic core memory

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MOST FAMOUS INVENTION --

FERRITE CORE MEMORY

BUILT ON AN WANGS WORK

PRIOR MEMORY WAS ELECTROMECHANICAL

VACUUM TUBES -- MAJOR PROBLEMS

WITH DOWNTIME -- ABOUT 1 MONTH- YEAR

SLOW

FERRITE CORE MEMORY WAS VERY FAST

DOWNTIME ABOUT 10 HOURS A YEAR

BASIS OF MOST IMPORTANT COMPUTERS UNTIL THE LATE 1960S

INCLUDING