Early People used ______ for counting.

• Fingers

• Stones

• Pebbles

• All of the above

Identify the device

• Abacus

• Tabulating Machine

• Pascaline

• Step Reckoner

Pascaline was invented in ______ by _________.

• 1642, Blaise Pascal

• 1672, Blaise Pascal

• 1642, Gottfried Wilhelm

• 1642, Charles Babbage

Herman Hollerith invented _____________ in _______.

• Difference Engine, 1890

• Tabulating Machine, 1990

• Tabulating Machine, 1890

• None

IBM stands for ______________

• International Business Machine

• Indian Business Machine

• International Machine

• None

MARK - I was invented by __________

• John Mauchly

• Prof Howard Aikens

• Presper Eckertles

• Charles Babbage

________ was invented by china.

What is an abacus used for?

• A tool for measuring time

• A device for storing data

• A machine for cooking food

• An abacus is used for performing arithmetic calculations.

What material were early counting devices often made from?

• Wood, bone, or stone

• Rubber, leather, or ceramic

• Paper, fabric, or clay

• Plastic, metal, or glass

How did early humans count before devices were invented?

• Counting with animals

• Early humans counted using fingers, pebbles, or notches on sticks.

• Using a calculator

• Writing numbers on paper