UNIVAC 1105

Floating-point numbers had a one-bit sign, an eight-bit characteristic, and a 27-bit mantissa.

The computer system weighed about 57,089 pounds (28.5 short tons; 25.9 t) with a floor loading of 47 lb/ft2 (230 kg/m2) and required a room 49 x 64 x 10 ft (15 x 20 x 3 m).

[4] In 1959, a Univac 1105 located in the basement of Phillips Hall of The University of North Carolina at Chapel Hill was one of three computers of its type.

It was intended primarily for the United States Census Bureau, which had one of its own; Armour Institute of Technology had the other.

The Univac was 60 feet long, weighed 19 tons, and used 7200 vacuum tubes.

UNIVAC 1105 operator console, in front of the cabinets containing the CPU and memory.
The U.S. Census Bureau used 1105s to process the 1960 census.