An SF book published in the 1950s (I have forgotten title and author, sigh) featured a then-imagined supercomputer with - 1M bits of storage - A mile on a sid

An SF book published in the 1950s (I have forgotten title and author, sigh) featured a then-imagined supercomputer with - 1M bits of storage - A mile on a side - Located in Buffalo, NY, and cooled by Niagra Falls (vacuum tubes, natch) - Able to surveil every citizen in the nation for suspicious activity No mention of clock speed, cache-line size, or instruction set. I guess SF writers aren't computer designers :-)