On Fri, 3 Nov 2006, Robert Feldman wrote:
No, quipus were to record information, not perform
computations or logic.
Also, they appeared a couple of thousand years after Stonehenge. Most quipus
are Inka, which date them after ca. 1100 AD, although, IIRC, there are Wari
quipus (ca 500AD). The Moche (200 BC-400AD) possibly used colored beans in a
similar way (the first bean counters!).
Oldest found so far is about 3000BC !
http://archaeology.about.com/od/ancientwriting/a/caralquipu.htm