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Description The prototype ANITA electronic calculator of 1958, with some of the covers removed to reveal components inside, on display in the en:Science Museum, en:London, en:United Kingdom. The mirror mounted behind the calculator allows the rear circuit board to be seen, with its en:vacuum tubes (grey) and en:capacitors (yellow).

This is a "full-keyboard" machine, similar to the mechanical "en:Comptometer" calculators of the time. Each decade of the display has a column of keys from 1 to 9 (0 is the default). The full-keyboard is very fast in operation since a trained operator could use the fingers of both hands to enter a complete number in one movement. The calculator logic was designed to cope with this.

If you want to view this machine in the en:Science Museum you are advised to contact the museum beforehand to confirm that it is still on display.

Scanned from a negative taken by myself.
Date 2007-04-24 (original upload date)
Source Originally from en.wikipedia; description page is/was here.
Author Original uploader was MaltaGC at en.wikipedia
(Reusing this file)

Licensed under the GFDL by the author; Released under the GNU Free Documentation License.


MaltaGC at the English language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
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attribution share alike
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Original upload log

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  • 2007-04-24 19:00 MaltaGC 800×729×8 (107063 bytes) The prototype ANITA electronic calculator of 1958 on display in the [[Science Museum]], [[London]], [[United Kingdom]]. If you want to view this machine you are advised to contact the museum beforehand to be sure that it is still on display. Scanned from

GNU Free Documentation License


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EXIF data:
File name anitaprototype1.jpg
Size, bytes 406641
Mime type image/jpeg
Orientation of image 1
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Image resolution in height direction 96
Unit of X and Y resolution 2
Color space information 65535
Exif image width 753
Exif image length 716
Software used Adobe Photoshop CS2 Windows
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