The IBM Naval Ordnance Research Calculator (NORC) was a one-of-a-kind first-generation (vacuum tube) electronic computer built by IBM for the United States Navy's Bureau of Ordnance. It went into service in December 1954 and was likely the most powerful computer at the time.^[1] The Naval Ordnance Research Calculator (NORC), was built at the Watson Scientific Computing Laboratory under the direction of Wallace Eckert.^[2]

The computer was presented to the US Navy on December 2, 1954. At the presentation ceremony, it calculated pi to 3089 digits, which was a record at the time. The calculation took only 13 minutes. In 1955 NORC was moved to the Naval Proving Ground at Dahlgren, Virginia. It was their main computer until 1958, when more modern computers were acquired. It continued to be used until 1968. Its design influenced the IBM 701 and subsequent machines in the IBM 700 series of computers.

Asteroid #1625 is named after the NORC, see Meanings of asteroid names (1501-2000).

You can read more about the IBM NORC at the wikipedia site.