This document provides a history of the Windows operating system from 1985 to the present. It summarizes the key features and release year of each major Windows version, including the introduction of windows in Windows 1 in 1985, the addition of overlapping windows in Windows 2.x in 1987, running DOS programs in Windows in Windows 3.x in 1990, the introduction of the Start menu and taskbar in Windows 95 in 1995, touch and tile interfaces in Windows 8 in 2012, and support for multiple devices in Windows 10 in 2015. The document traces the evolution of the Windows operating system over 30 years.

1. Windows
30 Years of Revolution

2. Contents
 About Windows
 Windows 1
 Windows 2.x
 Windows 3.x
 Windows 95
 Windows 98
 Windows 2000
 Windows ME
 Windows XP
 Windows Vista
 Windows 7
 Windows 8.x
 Windows 10

3. About Windows
▪ An Operating System based on GUI
▪ Developed by Microsoft©
▪ 40+ versions
▪ More than 1.5 billion users

4. Windows 1
1985

5. Windows 1
Features
▪ MS-DOS-based
▪ Tiled Windows (No overlapping)
▪ Multitasking
▪ Featured with small Programs like:
▫ Calender
▫ Calculator
▫ Clock
▫ Paint
▫ Reversi
▫ Control Panel

6. Windows 2.x
1987

7. Windows 2.x
Features
▪ Overlapping Windows
▪ Minimizing and Maximizing Windows
▪ Control Panel
▪ More Sophisticated Keyboard shortcuts
▪ Multitasking DOS GUI Programs

8. Windows 3.x
1990

9. Windows 3.x
Features
▪ Runing DOS programs in Windows
▪ Sharing devices between Windows
▪ Supporing Chinese Language
▪ Windows Media Player
▪ Solitaire (Moving Card Featured Game)

10. Windows 95
1995

11. Windows 95
Features
▪ Plug and play
▪ Start Menu
▪ Task bar
▪ Windows Explorer
▪ Internet Explorer

12. Windows 98
1998

13. Windows 98
Features
▪ Hibernation
▪ Multi-Monitor Support
▪ Windows Desktop Update
▪ Outlook Express
▪ Windows Address Book
▪ MS Chat
▪ NetShow Player (Later replaced by Windows Media Player)

14. Windows 2000
2000

15. Windows 2000
Features
▪ Faster Boot Time
▪ Business Oriented System

16. Windows ME
2000

17. Windows ME
Features
▪ Automated System Recovery
▪ Consumer aimed OS
▪ Un-suitable for Enterprise Line

18. Windows XP
2001

19. Windows XP
Features
▪ Comsumer Friendly
▪ Enterprise Line
▪ Start Menu and Task bar visual overhaul
▪ Vista Wallpaper
▪ Shadows and other visual effects
▪ Longest Running Windows OS

20. Windows Vista
2007

21. Windows Vista
Features
▪ Transparent Elements
▪ Better Search
▪ Better Security

22. Windows 7
2009

23. Windows 7
Features
▪ Fixed bugs and criticism by Windows Vista
▪ More Transparency Visual Effects
▪ Faster
▪ Stable
▪ Easier to use

24. Windows 8.x
2012

25. Windows 8.x
Features
▪ New Start Menu Look
▪ Touch Friendly
▪ Tiled Interface in Start Menu instead of list of programs
▪ Live Tiles
▪ Faster
▪ Support for much fater USB 3.0 devices
▪ Windows Store

26. Windows 10
2015

27. Windows 10
Features
▪ New Start Menu Look
▪ Both Tiled Interface and List of programs in Start menu
▪ Support for multiple devices including Windows Phones and Tablets

28. Bibliography
▪ Wikipedia
▪ windows.microsoft.com
▪ 9gag
▪ SuperSite for Windows