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Q: What is the electro mechanical counting device invented by john napeir?
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Who invented The first Mechanical Counting Device?

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.


Who invented the first counting device?

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.


What is the chemical name for an alarm clock?

An alarm clock does not have a chemical name. It is a mechanical or electro-mechanical device.


What era was the calculator invented?

The first modern-style electronic calculator was invented in the 1960s. The first counting device, an abacus, was invented in Egypt in about 2000 BCE. The mechanical calculator was developed in the 17th century.


What is the counting device invented by the Chinese?

abacus


What is an original mechanical counting device?

The abacus is the original mechanical counting device. It was likely first used over five thousand years ago, and used beads to keep track of numbers.


What is ment by relay?

It is usually an electro-mechanical device where a solenoid opens and closes electrical contacts.


Are headphones an electronic device?

No it isn't. ---- Technically speaking that is correct headphones are not electronic devices. They are a form of tranducer and therefore an electro-mechanical device.


Why is Charles Babbage as the father of computer?

he is remembered because he made the computerhe designed a mechanical one but never made it


When was 1st mechanical calculator invented?

In 1642 Blaise Pascal (a famous French mathematician) invented an adding machine based on mechanical gears in which numbers were represented by the cogs on the wheels.The abacus or counting frame was a device used for calculations that is probably 5000 years old and is still used throughout Asia and Africa.


Who invented the the device for counting radiation?

Johannes ( Hans ) Willhelm Geiger and Walther Muller


Probably the original mechanical counting device - traced back 5000 years?

The abacus. over 4000