- The first electronic computer, the Electronic Numerical Integrator And Computer (ENIAC), was built in 1945.
- The first computer program, written by Ada Lovelace in 1843, was intended to calculate Bernoulli numbers on Charles Babbage’s Analytical Engine.
- The first transistors were invented in 1947 by William Shockley, John Bardeen, and Walter Brattain at Bell Labs.
- The first commercial computer, the UNIVAC I, was sold in 1951.
- The first video game, Tennis for Two, was created in 1958 by physicist William Higinbotham.
- The first computer mouse was invented by Douglas Engelbart in 1963.
- The first mobile phone call was made in 1973 by Motorola engineer Martin Cooper.
- The first personal computer, the Altair 8800, was sold in 1975.
- The first e-commerce transaction was made in 1994 when a man bought a CD by the British rock band Sting from the website of CompuServe, a major online service provider at the time.
- The first social media website, Six Degrees, was launched in 1997, allowing users to upload a profile and make connections with other users.
