abacus New Writer: The human hand.
It was an abacus counting device
Early counting tools included tally sticks, which were notched sticks used to record tallies or counts, and counting boards, often made of wood or stone, that featured grooves or lines to help keep track of numbers. The abacus, an ancient counting device with beads that slide along rods, also served as an important tool for arithmetic. Additionally, objects like pebbles or shells were used as counters in various cultures for basic counting and trade. These tools laid the groundwork for more advanced mathematical concepts and counting systems.
It probably predates writing. The early development of the decimal system was done by counting on the fingers and toes.
Logs are logarithms, Napier's Bones were a very early calculating device produced by the inventor of logarithms
pictures of calculating devices with their inventors
10 fingers
Bob Pease
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
abacus New Writer: The human hand.
Approximately 223 U.S. establishments manufactured totalizing fluid meters and counting devices in the late 1990s
abacus
valued at $1.78 billion, and other totalizing fluid meters and counting devices valued at $171 million.
Ben Franklin.
Inventor of the mouse and several other human-computer interface devices.
The binary number system is very easy to equate to the way how all electronic devices work - two discrete values: on and off.
An early counting tool used for basic arithmetic.