Microsoft began in 1975 when Bill Gates and Paul Allen built software for early personal computers. It soon moved into operating systems with MS-DOS, then Windows — which became the de-facto standard for PC computing.
Through the 1980s and 1990s Microsoft expanded into productivity software (Office), developer tools, server infrastructure, and eventually gaming and enterprise systems. The IPO in 1986 and the launch of Windows 95 were major milestones that cemented Microsoft's dominant position.
From a small startup in Albuquerque to a technology superpower — that rise shaped the modern computer industry.