Information handling apparatus

Claim 1

IN COMBINATION, A ROTATING DISC DATA STORAGE ELEMENT HAVING A PLANAR SURFACE ON AT LEAST ONE SIDE THEREOF ON WHICH DATA IS ADAPTED TO BE STORED, SAID ELEMENT HAVING ON THE SURFACE THEREOF A PLURALITY OF CIRCULAR DATA STORAGE TRACKS EACH OF WHICH HAS A CENTER CORRESPONDING TO THE CENTRAL AXIS OF SAID ELEMENT, SAID ELEMENT BEING FURTHER DIVIDED IN A PLURALITY OF SECTORS EACH HAVING THE SIDES THEREOF DEFINED BY INDICIA IN EACH OF THE CIRCULAR TRACKS ALONG A PAIR OF LINES EXTENDING RADIALLY ON SAID ELEMENT, DATA TRANSFER MEANS POSITIONED ADJACENT SAID ELEMENT IN ORDER TO EFFECT A DATA TRANSFER WITH RESPECT TO DATA STORED ON SAID ELEMENT OR DATA TO BE STORED ON SAID ELEMENT IN SELECTED OPES OF THE CIRCULAR TRACKS ON SAID ELEMENT, REGISTER MEANS FOR STORING AN ITEM OF DATA TO BE RECORDED OR READ FROM SAID ELEMENT, MEANS SELECTIVELY COUPLING SAID REGISTER MEANS TO SAID DATA TRANSFER MEANS SO THAT WITH RESPECT TO ANY DATA TRANSFER, AT LEAST TWO DATA TRANSFER MEANS ARE UTILIZED FOR ANY ONE ITEM OF INFORMATION STORED IN SAID REGISTER MEANS, AND MEANS CLOCKING THE OPERATION OF SAID REGISTER MEANS AND SAID DATA TRANSFER MEANS SO THAT THE DATA TRANSFERRED WITH RESPECT TO SAID CIRCULAR TRACKS WILL BE AT A UNIFORM TRANSFER RATE.