Anita 1011 LSI
ANITA 1011 LSI
Distinctive features: The ANITA series that includes this model has a very distinctive design, unlike any other calculator. Employs LSI (Large-Scale Integration) integrated circuits.
Technical details:
Power supply - AC mains.
Display is 10 digits, Nixie tubes.
4- function, uses RPN (Reverse Polish Notation).
Uses 5 LSI (Large-Scale Integration) integrated circuits by General Instrument Microelectronics (GIM) - the metal cans in the photograph below.
222 mm X 135 mm X 88 mm (9" x 5.5" x 3.5").
Made in England by Sumlock Anita Electronics Ltd, distributed by Sumlock Comptometer Ltd.
Dates from about late 1970 (the advertisement below is from February 1971).
Cost £250 GBP (about US $625).
The ANITA 1011 LSI is similar to the ANITA 1000 LSI but also has memory, %, and rounding.
Significance:
The first ANITA calculator series to use LSI integrated circuits. A very distinctive design, unlike any other calculator.
A portable version with built in NiCad batteries and charger was available as the ANITA 1011B LSI, shown in the Portable Calculators Section.
ANITA 1011 LSI Operating Instructions (pdf format).
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With the cover removed, showing the two circuit boards with integrated circuits in cans (four on the small board and one on the large board) and the Nixie-tube display.
The Nixie-tube display in use.
Advertisement for ANITA 1000 LSI & ANITA 1011 LSI from February 1971.
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© Text & photographs copyright Nigel Tout 2000-2023 except where noted otherwise.