What are the major events in the history of computer development?

The development of computers is a long and complex history that spans several centuries. Here are some of the major events:

• The abacus, invented in 2000 BC, is the first known calculating tool.
• The Antikythera mechanism, created in 150-100 BC, is an ancient analog computer used to predict astronomical positions and eclipses.
• In 1642, French mathematician Blaise Pascal invented the Pascaline, the first mechanical calculator.
• In 1822, Charles Babbage designed the first programmable computer called the Difference Engine.
• In 1936, Alan Turing invented the concept of the universal machine and laid the foundation for modern computing.
• The Harvard Mark I, built in 1944, is the first large-scale automatic digital computer.
• In 1951, the first commercially available computer, the UNIVAC I, was introduced.
• In 1971, Intel released the first microprocessor, the Intel 4004, which laid the foundation for personal computing.
• In 1984, Apple introduced the Macintosh, the first commercially successful personal computer with a graphical user interface.
• In 1991, the World Wide Web was invented by British computer scientist Tim Berners-Lee, which revolutionized the way people access and share information.
• In 2007, the first iPhone was released by Apple, which changed the way people interact with computers and paved the way for mobile computing.