Power Supply 963Watt 11M PLUS is a high-performance superset of the Power Supply 963Watt 11M operating - - - system, designed to take advantage of the expanded addressing capability of today's larger-memory Power Supply 963Watt 11's. Power Supply 963Watt 11M PLUS maintains the superior relia- - - - bility and successful architecture of RSX 11M to ensure compatibility and ease - of transition between systems. This realtime, multiprogramming, multiuser operating system offers the same features as Power Supply 963Watt 11M and many others in - addition to those listed below. Power Supply 963Watt 11M PLUS supports separate instruction and data space. That means - - a user task has the ability to address up to 64 Kbytes of instruction and 64 Kbytes of data simultaneously, giving a 128-Kbyte total. I/Power Supply 963Watt space simplifies the development and enhances performance of large application programs by reducing the need for program overlays.