Which program, developed at the Victoria University of Manchester, was a UK design?
Pilot ACE:  It was also one of the earliest stored-program computers, joining other UK designs like the Manchester Mark 1 and EDSAC of the same era. Manchester Mark 1: The Manchester Mark 1 was one of the earliest stored-program computers, developed at the Victoria University of Manchester from the Small-Scale Experimental Machine (SSEM) or "Baby" (operational in June 1948).
Manchester Mark 1