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Rockwell 920

ROCKWELL 920 Programmable Calculator

Display is 14 digits, amber gas discharge. Also printout.
4 function, limited scientific, programmable, magnetic card reader.
  • Basic machine has 9 memories and 192 program steps.
  • Expanded machine model 920/2 has 41 memories and 448 program steps, cost £795 Sterling (about US$1850).
  • Expanded machine model 920/3 has 96 memories and 996 program steps, cost £895 Sterling (about US$2080).
Large Scale Integration (LSI) ICs date coded to early 1975.
297 mm x 425 mm x 155 mm (12" x 17" x 6.25"), 8.25 Kg (18.25 lbs).

Rockwell International
Business Equipment Division/Sunnyvale California.
Assembled in Mexico, US, and Foreign Parts.
(Distributed in the UK. by Sumlock Anita Ltd.)

Designed to be easily programmable in a business office or scientific laboratory, with conditional jumps, symbolic addressing, memory indirect addressing, subroutine nesting to 4 levels, and simple debugging and editing.
Each magnetic card can store 256 program steps on each side, and can also be used for storing data. Rockwell had an extensive library of programs available on magnetic cards that they could supply.
Model No: 920-3
Serial No: 951754-40

Manufacturer: Rockwell International
Date: 1st January 1975

Other Systems Related To Rockwell 920:

Item Manufacturer Date
Rockwell 44RD Calculator Rockwell International 1976

This exhibit has a reference ID of CH1578. Please quote this reference ID in any communication with the Centre for Computing History.


Rockwell 920

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