Before revision: In the UNIVAC I the capacity of an individual delay line was smaller, each column stored 120 bits, requiring 7 large memory units with 18 columns each to make up a 1000-word store.
After revision: In the UNIVAC I the capacity of an individual delay line was smaller, each column stored 120 bits, requiring seven large memory units with 18 columns each to make up a 1000-word store.