Abstract: Disclosed is a method and system for linear interpolation of coordinate points between first and second end points, to produce coordinates on a straight line outline and where said coordinates are located on a coordinate system having a first coordinate direction and second coordinate direction and encoded in machine readable data words a radix "r", corresponding to the order of values for designated positions in said data words by increasing the scale of the incremented value in the first coordinate direction to avoid floating point math and to increase its accuracy.

Abstract: An information exchange processor suitable for coupling a plurality of host computers to a plurality of communication channels each of which may utilize a uniquely defined communication discipline. More specifically, the information exchange processor comprises a master bus, one or more host memory input/output units each serving a different host computer, one or more microprocessors, one or more memory devices, and a plurality of device input/output units each of which serves one or more communication channels. Each communication channel can serve a peripheral device having a different communication discipline. In addition, the information exchange processor disclosed also provides a capability for interconnecting two communication channels having either the same or different communication disciplines for effecting direct information transfers therebetween without requiring monitoring by a host computer.