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The Windows Story

Zusammenfassung

Windows is the most-used desktop operating system in history and one of the most profitable products ever shipped, yet it began as a late, derided shell over MS-DOS that took a decade to become good. Its history is a chain of bet-the-company transitions: the graphical pivot of the 1980s, Dave Cutler’s NT kernel quietly replacing the DOS lineage, the Windows 95 launch that made an operating system a cultural event, the antitrust war its dominance provoked, the Longhorn collapse and Vista, and the post-Windows-8 retreat from mobile that ended with Microsoft — under Satya Nadella — treating Windows as one business among several rather than the center of the company.

The Long Road to 1.0

Microsoft announced Windows in November 1983, partly to freeze the market against graphical rivals; it shipped Windows 1.0 only on November 20, 1985. The product ran on top of MS-DOS, could only tile windows (overlapping was avoided), and was received as sluggish and pointless. Windows 2.0 (1987) added overlapping windows and provoked the Apple v. Microsoft “look and feel” lawsuit (1988), which Microsoft ultimately won — a ruling that effectively established that a GUI’s general visual concepts could not be monopolized (see The Xerox PARC Revolution for where those concepts came from).

The breakthrough was Windows 3.0 (May 1990) and 3.1 (1992): protected-mode memory use, decent performance on commodity 386 PCs, and the vast installed base of IBM-compatible hardware turned Windows into the default way most humans first met a graphical computer. It also marked the betrayal, as IBM saw it, of the joint OS/2 project — Microsoft took the GUI market for itself and left IBM holding the better system that lost.

Two Lineages: 95 and NT

Through the 1990s Microsoft ran two operating system families in parallel.

Windows 95 (launched August 24, 1995, with the Start button, taskbar, and the Rolling Stones’ “Start Me Up”) was the consumer line’s peak: a 32-bit shell still rooted in DOS compatibility, launched with midnight store openings and Jay Leno on stage — the moment an OS release became a mass-culture event. Windows 98 and the widely loathed Windows Me followed the same lineage to its end.

Windows NT was the other lineage: a from-scratch, portable, fully 32-bit kernel with protected memory, built by a team led by Dave Cutler, the architect of DEC’s VMS, hired in 1988. NT 3.1 shipped in July 1993 for workstations and servers. NT was what Windows had always claimed to be; it just needed a decade of hardware progress to fit on home machines.

Windows XP (October 25, 2001) merged the two lines — the NT kernel under the consumer brand — and became one of the most durable products in software history; it was still running significant infrastructure when support ended in 2014.

Antitrust: The Price of Winning

Bundling Internet Explorer into Windows to crush Netscape (see The Browser Wars) brought United States v. Microsoft (filed 1998). Judge Thomas Penfield Jackson found Microsoft a monopolist that had illegally protected its position and ordered the company broken in two in 2000; the breakup was reversed on appeal and the case settled in 2001 with conduct remedies. The episode is covered from the company side in Bill Gates and Microsoft and in The Platform Antitrust Story; its internal legacy was years of caution that competitors exploited.

Longhorn, Vista, and the Lost Decade

After XP, Microsoft attempted “Longhorn” — a maximalist release promising a database file system (WinFS), a new graphics stack, and managed code throughout. By 2004 the project had collapsed under its own integration debt and was reset, restarting from the Windows Server 2003 codebase. The salvage shipped as Windows Vista (January 2007): late, heavy, incompatible, and a reputational disaster, though its security architecture (UAC, driver signing — part of the Trustworthy Computing push described in Secure by Design) laid groundwork its successor harvested. Windows 7 (October 2009) was substantially Vista refined, and was received as redemption.

Meanwhile the iPhone and Android redefined personal computing. Windows 8 (2012) answered with a touch-first “Metro” interface grafted onto the desktop — alienating mouse-and-keyboard users without winning tablets — and the companion phone effort failed outright (Dead End: Microsoft’s Mobile Failures).

Windows as One Business Among Several

Windows 10 (July 2015) reversed course: free upgrades, a restored Start menu, and “Windows as a service” with rolling updates — a Microsoft developer’s remark that it would be “the last version of Windows” became famous, then false when Windows 11 shipped in October 2021. Under Satya Nadella, Windows ceased to be the strategic center of Microsoft — Azure and Office 365 were — and the once-unthinkable followed: Linux shipped inside Windows (WSL), and Edge moved onto Chromium, conceding the browser engine war.

Windows still runs on the large majority of desktop and laptop computers — roughly seven in ten — but the desktop itself is no longer where computing’s center of gravity lies. The empire remains; the territory shrank around it.

⚠️ Dead Ends Along the Way

Windows’s history is littered with abandoned strategic bets: OS/2 (with IBM), WinFS and the original Longhorn, Windows RT’s ARM lockdown, Windows Phone after the $7.2 billion Nokia acquisition (written off in a $7.6 billion impairment in 2015), and the Internet Explorer engine itself. The pattern is consistent: the core franchise survived each failed adjacency because the application and driver ecosystem — the deepest compatibility moat in software — made leaving Windows more expensive than enduring it.

📚 Sources