Bill Gates was born on October 28, 1955 in Seattle, Washington. He co-founded Microsoft Corporation, one of the world's largest technology companies. Gates is known for his development of the personal computer revolution, and through Microsoft, he played a key role in revolutionizing the software industry.Gates showed early interest in computer programming, and while attending Lakeside School, he wrote his first software program at the age of 13. In 1975, he dropped out of Harvard University to start Microsoft with his childhood friend Paul Allen. Their goal was to provide a computer software platform for personal computers, which were just starting to become popular.Under Gates' leadership, Microsoft experienced tremendous growth. The company's flagship product, the Microsoft Windows operating system, became the dominant operating system for personal computers worldwide. Gates played a pivotal role in the development and marketing of innovative software and technologies, such as the Microsoft Office Suite and the Internet Explorer web browser.Gates served as the CEO of Microsoft from its founding in 1975 until 2000, and as the chairman until 2014. During his tenure, he made significant contributions to the field of technology, and his leadership and vision shaped Microsoft into one of the most influential companies in the world.In addition to his work at Microsoft, Gates is also a notable philanthropist. In 2000, he and his wife, Melinda Gates, established the Bill & Melinda Gates Foundation, a nonprofit organization focused on global health, education, and poverty alleviation. The foundation has made significant contributions to various causes, including efforts to eradicate polio and improve access to vaccines in developing countries.As of 2021, Gates has stepped down from his day-to-day role at Microsoft but remains involved in the company as a board member. He continues to dedicate much of his time and resources to philanthropy through the Bill & Melinda Gates Foundation.