IBM's XT and AT. These computer people generally also have access to other systems which have been developed by IBM, such as systems based on the 360/370 operating systems. Many student computer laboratories workstations use a reduced instruction set computer architecture developed by IBM in the last decade, a so called RISC system exemplified by the SUN Microsystems workstations and IBM's RISC/6000 machines. These machines use the UNIX operating system and are generally made available to students majoring in the software area of computer science. The machines that the students use in their education are often stand alone systems, but they usually have access in a computer laboratory to a mainframe such as the IBM mainframes based on the SYSTEM/370 architectures which have been used for the lastthis area. Part of the reason for this is that only a relatively small group of research and development personnel of great expertise may grasp a solution which leads to the satisfaction of a wish and an advancement in the state of the art, when each one of say twenty five developers contributes his or her own inventions to the whole development.
These improvements may be useful for others and may become new paradigms in the art in a particular area of development. New processes speed processing and provide building blocks for future progress.
Our work is useful in improving the speed of operations needed by others such as the United States Government for improving production systems. These systems in the past have used CLIPS and the RETE algorithm (FIG.