Slide RulesIndex by Makers & Retailers
Hundreds of companies around the world were involved in the production of slide rules from the 18th to the 20th centuries. Click on one of the names below to see the objects in this collection that were associated with that firm.
"Slide Rules - Index by Makers & Retailers" showing 1 items.
- This circular device was an aid to programming the UNIVAC solid state computer. It consists of a paper disc, with equal divisions running from 1 to 200 near the edge, and a clear plastic rotating disc. These are pivoted together at the center. The upper disc is marked in red with two perpendicular diameters. The lower disc is marked: MINIMUM LATENCY CALCULATOR FOR THE UNIVAC SOLID-STATE COMPUTER. The UNIVAC had a magnetic storage drum on which locations were specified numerically. The latency calculator allowed programmers to write code for the machine to make the most efficient possible use of the drum memory.
- The back of the instrument gives a list of instruction codes and corresponding execution times for words. It is marked: Remington Rand Univac. It is also marked: U1767 Rev. 1 PRINTED (/) IN (/) U.S.A. The rule was received in a paper bag.
- Reference: Sperry Rand Corporation, Simple Transition to Electronic Processing, UNIVAC Solid-State 80, (1960), 18–26.
- Currently not on view
- date made
- after 1950
- Remington Rand Univac
- ID Number
- accession number
- catalog number
- Data Source
- National Museum of American History, Kenneth E. Behring Center