who invented the first calculator?

Answer 1

Before slide rules and adding machines dominated accounting. Until Blaise Pascal invented the digital calculator to help his father with tax collecting.

Answer 2

The first calculators were abacuses, and were often constructed as a wooden frame with beads sliding on wires. Abacuses were in use centuries before the adoption of the written Arabic numerals system and are still widely used by merchants and clerks in China and elsewhere.

The origins of the abacus are disputed, as many different cultures have been known to have used similar tools. It is known to have existed in Babylonia and in China, with invention to have taken place between 1000 BCE and 500 BCE. The first abacus was almost certainly based on a flat stone covered with sand or dust. Lines were drawn in the sand and pebbles used to aid calculations. From this, a variety of abaci were developed; the most popular were based on the bi-quinary system, using a combination of two bases (base-2 and base-5) to represent decimal numbers.

Answer 3

If we don't take the abacus (that have been in use for many 1000s of years)in to consideration, the first mechanical calculator was made by the French scientist Blaise Pascal in the 17th century.

Answer 4

THE ABACUS - CHINA