Linked by Thom Holwerda on Sat 22nd Nov 2008 23:05 UTC
In the News When you're diving into the history of computing and its concepts, you rarely have to look much further back in time than the Second World War. It happens sometimes, but not that often. However, there are exceptions - and this is one that really boggles the mind: the pixel? One of those little dots on your screen? It's well over 400 years old.
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RE: No surprise there
by dpeterc on Sun 23rd Nov 2008 17:39 UTC in reply to "No surprise there"
dpeterc
Member since:
2007-09-08

To be even more precise, J.M. Jacquard "only" automated the pattern transfer into the fabric by using a mechanical device with punched cards.
Manual creation of such fabrics existed for over two thousand years. To make any such fabric, a sketch is necessary, since it is impossible for a weaver to make complex designs out of his/her head.
The "pixels" in textile sketch are rectangular, to reflect the density of weaving. So pixels can also be square, but more often they are not.
Weaving of carpets also requires the same kind of pixel-based sketch.
Check the wikipedia entry on tapestry
http://en.wikipedia.org/wiki/Tapestry
for some pictures of old tapestries.

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