1. A system for a network of computers, comprising: at least two personal computers; means for providing network services and shared computer processing, including parallel processing, to be provided to said at least two personal computers within said network; means for at least one of said at least two personal computers, when idled, to be made available temporarily to provide said shared computer processing to said network; means for at least one of said at least two personal computers, when directed by a corresponding personal user, to function temporarily as a master personal computer to initiate and control execution of a computer processing operation shared with at least one other of said at least two personal computers in said network; means for said at least one other of said at least two personal computers, when idled, to be made available to function temporarily as at least one slave personal computer to participate in an execution of a shared computer processing operation controlled by said master personal computer; and means for said at least two personal computers to alternate as directed between functioning as a master and functioning as a slave in said shared computer processing operation, wherein each of said at least one slave personal computer consolidates or passes through results sent from another slave personal computer at a lower processing level.