Microsoft Timeline

Microsoft company history from the founding and MS-DOS through Windows, Office, Xbox, cloud computing, and the modern era.

📅 22 events📈 Business1975-2025Updated Oct 2026
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About this timeline

A visual history of Microsoft, from its founding and partnership with IBM through Windows, Office, Xbox, Azure, and its transformation into a cloud-first technology company.

Every event in this timeline

Jan 1, 1975

Microsoft founded

Bill Gates and Paul Allen begin Microsoft after developing Altair BASIC for MITS.

Jan 1, 1979

Microsoft moves to Bellevue

The company relocates from Albuquerque to Bellevue, Washington.

Jan 1, 1980

IBM selects Microsoft for PC software

Microsoft reaches an agreement to provide an operating system for IBM's personal computer.

Jan 1, 1981

Microsoft incorporates and MS-DOS ships with IBM PC

Microsoft incorporates; IBM introduces its PC using Microsoft's 16-bit operating system.

Jan 1, 1985

Windows 1.0 released

Microsoft releases its first Windows graphical environment for MS-DOS.

Jan 1, 1986

Microsoft goes public

Microsoft's stock begins trading publicly and the company moves to its Redmond campus.

Jan 1, 1989

First Microsoft Office released

Office launches first for Macintosh, creating a major productivity-software suite.

Jan 1, 1990

Windows 3.0 launches

Windows 3.0 expands Microsoft's graphical operating-system reach and includes Solitaire.

Jan 1, 1995

Windows 95 launches

Windows 95 introduces the Start menu and becomes a major consumer software release.

Jan 1, 1998

Windows 98 launches

Microsoft releases Windows 98 with broader consumer hardware and Internet integration.

Jan 1, 2000

Windows 2000 launches

Windows 2000 brings the Windows NT line to business desktops and servers.

Jan 1, 2001

Windows XP and Xbox launch

Microsoft releases Windows XP and launches the original Xbox in the same year.

Jan 1, 2005

Xbox 360 launches

Microsoft releases Xbox 360, expanding its console and online-gaming business.

Jan 1, 2010

Azure becomes a major cloud platform

Microsoft continues the commercial expansion of Windows Azure, its cloud-computing service.

Jan 1, 2011

Office 365 launches

Microsoft introduces Office 365 as a subscription-based productivity service.

Jan 1, 2012

Windows 8 and Surface launch

Microsoft releases Windows 8 and introduces Surface hardware.

Jan 1, 2014

Satya Nadella becomes CEO

Nadella succeeds Steve Ballmer and emphasizes cloud services and cross-platform development.

Jan 1, 2016

Microsoft acquires LinkedIn

Microsoft announces and completes its acquisition of LinkedIn.

Jan 1, 2018

Microsoft acquires GitHub

Microsoft completes its acquisition of GitHub, a major software-development platform.

Jan 1, 2021

Windows 11 launches

Microsoft releases Windows 11 as the successor to Windows 10.

Jan 1, 2023

Microsoft 365 Copilot announced

Microsoft introduces Copilot across Microsoft 365 as part of its generative-AI push.

Jan 1, 2025

Microsoft marks 50 years

Microsoft publishes a 50-year retrospective covering software, gaming, cloud, and AI milestones.

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