ANITA Desk Calculators using both Transistor Logic & Integrated Circuits
ANITA 1021

Anita 1021

ANITA 1021

Power supply - AC mains.

Display is 10 digits, Nixie tubes.

4-function, %, storage, square root, uses RPN (Reverse Polish Notation).

The electronics is similar to that of the ANITA 1011. It mainly uses transistors, but also has integrated circuits made by Marconi-Elliott Microelectronics using "MOST" (Metal-Oxide Semiconductor Transistor) technology.

265 x 335 x 172 mm (10.4" x 13.25" x 6.75").

Introduced 1970, price £430 GBP (about US$1030).

Made in England by Sumlock Anita Electronics Ltd, distributed by Sumlock Comptometer Ltd.

This advertisement below is from a period when there was a great "buy British" campaign in the UK.

Advertisement for ANITA 1020 & 1021

Advertisement for the ANITA 1020 and 1021 square root models from April 1970.

Sales brochure for the ANITA 1021 (pdf format, courtesy of Matthew Mawson).

Anita Desk Calculators using both Transistor Logic & Integrated Circuits

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Text & photographs copyright © 2002 - 2021 Nigel Tout, except where noted otherwise.