A Tour of Company Sites

Rockwell-Anita Calculators
Rockwell-Anita 201

Anita 201

Rockwell Anita 201.

6v (4x AA batteries).

Display is 8 digits, green fluorescent.

4 functions, %, memory.

82 mm x 155 mm x 45 mm (3.25" x 6.1" x 1.75").

The label on the back says "Rockwell International.
Sumlock Anita Ltd, Uxbridge, England.
Assembled in Mexico Primarily of United States components."

By the time that this model was made Rockwell had taken over Sumlock Anita and many of the Rockwell calculators were manufactured in Mexico.


The photographs here illustrate the complicated situation of Rockwell calculator manufacture.


The box for the calculator, left and below, display "Sumlock Anita, Rockwell International".


The label on the rear of the calculator displays "Assembled in Mexico, Primarily of United States Components".

The instruction manual does not mention Anita at all, but instead features the name of Unicom Systems, which was Rockwell's U.S. calculator manufacturer.

Origins of Bell Punch Co.
Mechanical Calculator Days
National Calculating Service
Development of Anita 1
Development of Anita 2
Anita is Launched
At work with Anita
All Change at Bell Punch
Anita Developed Further
Anita at its Zenith
The Rockwell Connection
Demise of Anita & Bell Punch
Mechanical Calculators
Early Anita Desktop Calculators
Transistors & Integrated Circuits
Anita LSI Desk Calculators
Anita Hand-held Calculators
Rockwell-Anita Calculators
Calculators made by others
Advertisements & Brochures
Operating Manuals & Materials
Company Information
A Tour of Company Sites
The Technology Explained
Operating a Comptometer
Old Sterling Currency, £sd
Update Information
Getting in touch

Rockwell-Anita Calculators

811 SL
1211 SL
Rockwell 20R
Rockwell 21R
Rockwell 30R

Click here to go to the Vintage Calculators Web Museum

Text & photographs copyright © 2002 - 2009 Nigel Tout, except where noted otherwise.