1. A SWITCHING ARRANGEMENT COMPRISING A MAGNETIC STRUCTURE OF REMANENTLY MAGNETIZABLE MATERIAL AND DEFINING A PLURALITY OF DISTINCT AND SEPARATELY MAGNETIZABLE SECTIONS, A PLURALITY OF MAGNETIC REED SWITCHES COUPLED TO SAID SECTIONS, EACH OF SAID SECTIONS BEING COUPLED TO ADJACENT SWITCHES, AND MEANS FOR SIMULTANEOUSLY AND INDIVIDUALLY DETERMINING THE MAGNETIZATIONS OF SAID SECTIONS, EACH OF SAID SWITCHES BEING POSITIONED SO THAT THE SERIES MAGNETIZATION OF ADJACENT ONES OF SAID SECTIONS DETERMINES THE OPERATION OF SAID SWITCHES AND EACH ONE OF SAID SECTIONS SIMULTANEOUSLY AFFECTS THE OPERATION OF MORE THAN ONE OF SAID SWITCHES.