File:IBM 604 Electronic Calculator (1948).jpg

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Description

This programmable electronic calculator uses some 1400 electron tubes; its weight is more than 600 kilograms. Instead of using a keyboard and screen, input and output was by means of punched cards. The punched card machine (almost the same size as the 604 itself) is not shown here.

The 604 was IBM's 2nd step into the realm of electronic calculators, and at the time had many innovative features. But it differs in so many ways from modern calculators (speed, size, ease of use, reliability, price...) that you can hardly compare them.

Visit my blog at ideonexus.com for science news and speculation.
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Source Flickr: IBM 604 'Electronic Calculator' (1948)
Author Ryan Somma
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This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 24 November 2011, 16:57 by ArnoldReinhold. On that date, it was confirmed to be licensed under the terms of the license indicated.
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inception

1 January 1980

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Date/TimeThumbnailDimensionsUserComment
current02:49, 10 January 2016Thumbnail for version as of 02:49, 10 January 20162,048 × 3,072 (4 MB)Bubba73Reduce the glare some
04:54, 6 January 2015Thumbnail for version as of 04:54, 6 January 20152,048 × 3,072 (1.61 MB)Bubba73slight color correction, but it looks like it is lit by different colors of lights
20:04, 24 November 2011Thumbnail for version as of 20:04, 24 November 20112,048 × 3,072 (2.67 MB)RotatebotBot: Image rotated by 270°
18:52, 24 November 2011Thumbnail for version as of 18:52, 24 November 20113,072 × 2,048 (3.08 MB)ArnoldReinhold
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