While they may seem like a very modern invention, the idea of the computer has been around for much longer than most of us realize. The oldest iteration of a computer was built in 1642, when Blaise Pascal of France created a calculating machine. This machine ran on rotating toothed wheels. The next step in the development of computers came in 1930, when Vannevar Bush made a “differential analyzer”, a machine that could perform calculus. In 1944, Howard Aiken of Harvard built an early digital computer called Mark I. Mark I was soon surpassed by ENIAC (Electronic Numerical Integrator And Computer), built by J. Presper Eckert Jr. and John W. Mauchly, which was 1,000 times faster than Mark I. Since then, improvements like transistors, integrated circuits, and microprocessors have built upon these early computers and helped to develop the modern computers we know today.

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