There is always pressure for backwards compatibility Old war: Product Management versus Engineering ''Accordingly, West called Wallach to his office in the spring of 1978 and asked him to draw up the architecture for a 32-bit Eclipse. Steve Wallach glared at West. Wallach got to his feet and, coining a phrase, said: "F**k that! I'm not puttin' a bag on the side of the Eclipse." Then he stomped out of West's office.'' -- The Soul of a New Machine, Tracy Kidder, pg. 68