He Co-Founded Apple, and helped create the first commercially successful personal computer.

This device was the first known calculator.

This device was discovered in a Greek ship wreck. Over 2,000 years old, this device was one of the first mecanical computers. It could calculate the movement of starts and planets in astronomy.

He invented the Pascaline, the first mechanical calculator.

His Loom Head inventions, used punch cards like computer programs. When you changed the punch card, you could change the patterns.

He inventented an electronic tabulating machine to help with the US Census. This machine was one of the first electronic computers. His company would later be known as IBM.

Inventor of the first computer. His Difference Engine and Analytical Engine were the first automatic mechanical computers/calculators. Laid the groundwork for what computers have become today.

This device, invented by Charles Babbage, was the first automatic mechanical calculator.

This engine, invented by Charles Babbage, was the first fully programmable automatic mechanical calculator, and is first general purpose computer concept.

Wrote the first computer program using punch cards, is the first computer programmer.

An American computer scientist, and invented the first personal computer, Simon, in 1950.

He invented the first computer mouse in 1964, changing the way we interact with computers.

He co-founded Microsoft, the largest software company in the world.

He co-founded Apple, and helped create the first commerically successful personal computer with a mouse.

Built in 1942, this device was the first fully automatic electronic digital computer.

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