ANITA Electronic Hand-held Calculators


Known ANITA electronic hand-held calculators made by Sumlock Anita (models not made by Rockwell).



The following models look very similar to these Sumlock Anita hand-held calculators but were marketed by or manufactured by other companies.  They are dealt with separately in the section Models Derived from ANITA Calculators.


The ANITA AC Adaptor is also included here since it has the unusual feature of a switch which allows it to power a calculator from the AC supply while it is fitted with disposable, non-rechargeable, batteries.


Click on a picture below for more details and more, bigger, pictures.

Anita 811
Anita 811

The first ANITA hand-held calculator.

Anita 811 "slim line"
Anita 831
Anita 841
Anita 851


Anita 861

ANITA AC Adaptor

ANITA AC Adapter

Simon Southwell has produced fascinating simulations of some of the ANITA calculators at
Pop one up and have a go, but don't forget to switch it on first.

The Bell Punch Company & the Development of the Anita Calculator
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Text & photographs copyright © 2002 - 2023 Nigel Tout, except where noted otherwise.