DAVE Boggs and Ron Crane worked at Stanford on the original IMP which was implemented on a PDP-11. When I went to Stanford to teach in 1976, I inherited the PD

DAVE Boggs and Ron Crane worked at Stanford on the original IMP which was implemented on a PDP-11. When I went to Stanford to teach in 1976, I inherited the PDP-11 for use in the EE288 laboratory. The PDP machine was unstable, crashing frequently when using the aftermarket Systems Industries disk. i was told that to make things run at all, the Unibus clock had to be throttled down. Investigation showed that someone, presumably Boggs and Crane, had modified the hardware configuration of the Unibus to overlap transactions for speed but had never thoroughly tested it with a disk. Adding the disk to the Unibus changed the timing on the bus just enough to cause occasional failures. The engineering solutions: low down the clock on the bus.