Skilled operators of these devices can perform a technique known as anzan, where they visualize these devices in order to perform mental calculation without using them.
A Mesoamerican version of this device was known as the nepohualtzintzin and was used by people known as temalpouhqueh. Skilled operators of these devices can perform a technique known as anzan, where they visualize these devices in order to perform mental calculation without using them. The use of these computing devices in Rome originated the use of the word  calculus , originally the word for   pebble, to refer to computation. The suanpan and the soroban are examples of, for ten points, what sort of arithmetical computing aid which makes use of beads on wires?
A Mesoamerican version of this device was known as the nepohualtzintzin and was used by people known as temalpouhqueh.
abacus [accept word forms, accept suanpan and soroban before mention, prompt on descriptive answers]