A brief history of where computers all came from

1. The Contributors

2. The counting frame

3. Modern data processing began with the inventions
of American engineer, Herman Hollerith.

4. Use of electricity to read, count, and sort punched cards
whose holes represented data gathered by the census-
takers.

9. French inventor,
Blaise Pascal was one
of the most reputed
mathematician and
physicist of his time.
He is credited with
inventing an
early calculator,
amazingly advanced
for its time, called the
Pascaline.

11. A Pascaline opened up so you can observe the gears and cylinders which
rotated to display the numerical result.