The first manual computing device.

• Abacus

• Stepped Reckoner

• Counting Clock

• Stones and Pebbles

A calculating machine invented by a French Mathematician to help his father a tax collector.

• Calculating Clock

• Abacus

• Pascaline

• Stepped Reckoner

Abacus was originated from __________________.

• China

• Babylonia

• Asia

• Japan

A calculating machine invented by Gottfried Wilhelm Leibnitz.

• Pascaline

• Stepped Reckoner

• Calculating Clock

• Arithmometer

A calculating machine invented by Wilhelm Shickard.

• Calculating Clock

• Arithmometer

• Stepped Reckoner

• Jacquard Loom

He was known as the " Father of the Modern Computer".

• Wilhelm Shickard

• Blaise Pascal

• Charles Babbage

• Charles Xavier

The world's first computer programmer.

• Grace Hopper

• Lady Ada Lovelace

• Charles Babbage

• Bill Gates

The invention of Charles Xavier Thomas de Colmar.

• Anemometer

• Arithmometer

• Stepped Reckoner

• Analytical Engine

The computing device that was powered by steam.

• Analytical Engine

• Calculating Clock

• Difference Engine

• Arithmometer

An electronic device used to process and store data.

• Calculator

• Computer

• Jacquard Loom

• Abacus