Computer control systems

Claim 1

IN A COMPUTER WHEREIN SIGNAL-REPRESENTED DATA WORDS ARE STORED IN A MEMORY UNIT VIA AN INPUT-OUTPUT UNIT, TO BE THEREAFTER PROCESSED BY AN ARITHMETIC UNIT UNDER CONTROL OF SIGNAL-REPRESENTED COMMAND WORDS SUPPLIED BY A CONTROL UNIT, AS FROM SAID MEMORY UNIT, EACH OF SAID UNITS BEING INTERCONNECTED WHEREBY DATE WORES CAN BE TRANSFERRED FROM ANY UNIT TO ANOTHER IN ACCORDANCE WITH A PROGRAM OF OPERATION, AND EACH OF SAID UNITS INCLUDING ACTIVE REGISTER LOCATIONS FOR WORDS IN CURRENT PROCESS, THE IMPROVEMENT WHICH COMPRISES: PLURAL SENSE MEANS TO SENSE THE OCCURRENCE OF ANY OF A PLURALITY OF PREDETERMINED SIGNAL-REPRESENTED WORDS IN EACH OF SAID ACTIVE REGISTER LOCATIONS OF SAID COMPUTER TO FORM AN INTERRUPT SIGNAL; A PLURALITY OF COMMAND SOURCE MEANS FOR SUPPLYING ALTERNATE SIGNAL-REPRESENTED COMMAND WORDS IN PLURAL PREARRANGED PATTERNS; SIGNAL-CONTROLLED MEANS FOR PROVIDING SIGNAL-REPRESENTED COMMAND WORDS TO SAID CONTROL UNIT FROM SAID COMMAND SOURCE MEANS; AND MEANS SETTABLE TO ALTERNATIVELY PERMIT AND PREVENT THE PASSAGE OF SAID INTERRUPT SIGNALS FROM EACH OF SAID SENSE MEANS TO SAID SIGNAL CONTROLLED MEANS THEREBY TO ALTER THE PROGRAM OF OPERATION OF SAID COMPUTER ACCORDINGLY UPON THE OCCURRENCE OF A PREDETERMINED SIGNAL-REPRESENTED WORD IN ONE OF SAID ACTIVE REGISTER LOCATIONS.