1. A non-transitory computer-readable medium having stored thereon computer-executable instructions that, when executed by a processor of a computer system, to enable a program for dynamically selecting computer-readable files, the method comprising: defining a logical operation adapted to be applied to a plurality of computer-readable files, the logical operation being adapted to be dynamically applied to the plurality of computer-readable files; applying the logical operation to the plurality of computer-readable files to define operation-selected computer-readable files; providing a group of operation-selected computer-readable files on a basis of the logical operation; displaying at least a portion of the group of the operation-selected computer-readable files in an array of computer-readable files; and dynamically updating the displayed group of operation-selected computer-readable files on a basis of an event effecting the plurality of computer-readable files.