A Tour of Company Sites

Anita Hand-held Calculators
Anita 831

Anita 831

Anita 831

Display is 8 digits, red LED.

4 functions, %, memory, square root

4.5v (3x AA batteries).

69 mm x 118 mm x 24 mm (2.8" x 4.7" x 1").

Sumlock Comptometer Ltd., England.

 

There is an operating manual for this machine in the Operating Manuals & Leaflets section.

With cover up.

The rear aluminium cover slides up to replace the batteries.

Home
Introduction
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
Summary
The Technology Explained
Operating a Comptometer
Old Sterling Currency, £sd
Links
Update Information
Getting in touch

Anita Hand-held Calculators

810
Anita 811 & Triumph-Adler 81
831
841
851
861
8041

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