i am used to count some call this a manual calculator it's also called abacus
The first calculator dates back to 2700 BC with the invention of the Abacus, invented in Mesopotamia.In the 1940's and 1950's, the first mainframe computers were invented, which led towards the hand-held calculators we know today.In the mid-1960's, desktop calculators were coming to fruition, and in 1970, the first "Pocket" calculator was invented in Japan by Sanyo, called the ICC 0081.
The first calculator was never launched, because it was in fact a mechanical calculator.
The very first calculator ever used could be an abicus, an electronic calculator, or even your brain. The first calculator invented was the abacus.
who invented the first mechanical digital calculator
i am used to count some call this a manual calculator it's also called abacus
Fingers
abacus is the first manual mechanical calculator
The Ancient Chinese made the first means for counting with the abacus.
Two important technologies come to mind when speaking about new technology achievements from China. The first is the invention of gun powder and the second is the invention of paper.
ancient as in the Chinese calculator that uses beads, or as in the first electronic computer, Eniac?
Paper money was first introduced into the Chinese economy in 1023... But that doesn't exactly constitute as an invention...
There is a red ON/CA button on the far left side, second row. Google: LS-100TSG Calculator Instruction Manual , first link
China invented fireworks first, then the Europeans found out about the Chinese invention, and then it spread around the world.
The first calculator dates back to 2700 BC with the invention of the Abacus, invented in Mesopotamia.In the 1940's and 1950's, the first mainframe computers were invented, which led towards the hand-held calculators we know today.In the mid-1960's, desktop calculators were coming to fruition, and in 1970, the first "Pocket" calculator was invented in Japan by Sanyo, called the ICC 0081.
The first calculator was never launched, because it was in fact a mechanical calculator.
Actually, the first inventors of the flame throwers were the Chinese. The flamethrower is an ancient invention. The general idea of something shooting continuous flames came from the Chinese around the 10th century B.C.