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Q: What are manual calculating devices?
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Pictures of early computing devices and its inventor?

pictures of calculating devices with their inventors


The earliest calculating devices are?

The china had one with rows wooden round balls on wires, 3 rows of them, 3 balls & 3 balls =6 in the last row, that was add, to subtract it was to the left cool


What are some calculating devices?

Abacus, slide rule, computer, calculator.


Before the 1940's all of the calculating devices were mechanial because why?

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What is the name of the manual calculating device which consists of beads?

Abacus


What are the manual computing devices?

balande


What is semi automatic calculating device?

The devices could do most of the calculation work by itself


What were the calculating devices before the invention of computer?

The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.


What are the types of devices used for calculating and processing data?

The device used for calculating and processing data in a computer system is known as the Central Processing Unit, or CPU for short.


Who are the inventors of calculating devices?

Texas Instruments received the patent - see relevant link below .


What are kitchen labor saving devices?

labor saving devices - these devices reduces the need for manual labor, n reduces the of time spent doing task


Before 1940s all of the calculating devices were mechanical because why?

because that's all they had but now we have didital ones that are better