Associative memory device

Claim 1

A MAGNETIC MEMORY ARRAY CAPABLE OF BEING NONDESTRUCTIVELY INTERROGATED COMPRISING: MEMORY CELLS ARRANGED IN WORD ROWS AND BIT COLUMNS, EACH OF SAID CELLS COMPRISING FIRST AND SECOND ANISOTROPIC MAGNETIC FILMS IN MAGNETICALLY COUPLED RELATIONSHIP WITH EACH OTHER, THE FIRST FILM OF EACH CELL BEING A STORAGE FILM WITH RELATIVELY HIGH COERCIVITY AND HAVING AN EASY AXIS THAT EXTENDS IN THE GENERAL DIRECTION OF ITS WORD ROW, THE SECOND FILM OF EACH CELL BEING A READ FILM WITH RELATIVELY LOW COERCIVITY AND HAVING AN EASY AXIS THAT IS SUBSTANTIALLY AT RIGHT ANGLES TO THE EASY AXIS OF THE ASSOCIATED STORAGE FILM, SAID READ FILM BEING MAGNETICALLY BIASED BY THE ASSOCIATED STORAGE FILM SO THAT NORMALLY THE MAGNETIZATION OF SAID READ FILM IS DIRECTED ALONG ITS HARD AXIS IN ANTIPARALLEL RELATION WITH THE REMANENT MAGNETIZATION OF SAID STORAGE FILM, THE MEMORY CELLS IN EACH OF SAID WORD ROWS BEING FURTHER ARRANGED IN PAIRS, EACH SUCH PAIR OF CELLS BEING DISPOSED RESPECTIVELY IN TWO SEPARATE COLUMNS AND BOTH SUCH CELLS RELATING TO THE SAME BIT STORAGE POSITION IN THE ARRAY,, A BIT INTERROGATING MEANS INCLUDING THE FOLLOWING ELEMENTS;