It was an abacus counting device
abacus
An Abicus
counting tray and spatula
The first mechanical counting device was invented by Blaise Pascal in 1642. It was primarily used as an adding machine. It could add and subtract two numbers.
It was an abacus counting device
he is remembered because he made the computerhe designed a mechanical one but never made it
Abacus
abacus
A hand held counting device is called a calculator. You can purchase a calculator anywhere that school and office supplies are sold.
probably the counting board
It is a device used for counting in ancient times
An Abicus
It may depend upon the early civilization referred and their records thereof. Anyway, here are some of the ancient devices chronologically listed below. pebbles and stones counting boards counting rods abacus
Early man used various objects such as stones, knotted ropes, notches on sticks, and shells to keep track of quantities. These objects were manipulated or moved as each item was counted, helping early humans with basic arithmetic calculations and recording transactions.
A decatron is a type of electron tube that functions as a digital counting device. It is typically used in electronic counting circuits, such as in early computers and calculators, to display numerical information. The decatron works by sequentially illuminating neon-filled cathodes to represent different digits in a counting sequence.
counting tray and spatula