Comparing separate sets of record carriers arranged in the same sequence to determine whether at least some of the data in one set is identical with that in the other set or sets

Full Title

Methods or arrangements for processing data by operating upon the order or content of the data handled (logic circuits H03K19/00) > Arrangements for sorting, selecting, merging, or comparing data on individual record carriers > Comparing separate sets of record carriers arranged in the same sequence to determine whether at least some of the data in one set is identical with that in the other set or sets