The document discusses the history and features of major Windows operating systems. It describes what an operating system is and its core functions. It then outlines the most popular operating systems, including Windows, Mac OS, and Linux. The document proceeds to summarize key details of Windows XP, Vista, 7, 8, and 10 releases, such as hardware requirements, new features introduced, and popular interface elements for each version.

1. OPERATING SYSTEMS
Computer Maintenance

2. WHAT IS AN OS?
 The most important
program that runs on a
computer.
 Manages all the other
programs in a
computer.
 Manages all the
hardware resources.

3. MOST POPULAR OPERATING SYSTEMS
 Windows: Most widely used.
 Mac OS: Only run on Macintosh computers.
 Linux: Open-source

4. WINDOWS XP
 Released October 25,
2001
 Two major versions:
Home and
Professional
 Recommended
Hardware
Requirements:
 Processor: 300MHz
 RAM: 128MB
 Hard Drive: 1.5GB
 New Features:
 Faster start-up
 Remote Desktop
 User Interface
 Windows Firewall
 Windows CD burning
 Security Center
 Wireless Connection

6. WINDOWS VISTA
 Released January 30,
2007
 5 Versions: Home
Basic, Home Premium,
Business, Enterprise, &
Ultimate
 Recommended
Hardware
Requirements:
 Processor: 1GHz
 RAM: 1GB
 Hard Drive: 40GB
 DVD-ROM
 New Features:
 Windows Aero
 Windows Flip
 Windows Flip 3D
 Internet Explorer 7
 Microsoft Defender
 Windows Search
 Windows Sidebar
 Improved security and
safety features

8. WINDOWS 7
 Released October 22,
2009
 6 Editions:
 Starter
 Home Basic
 Home Premium*
 Professional*
 Enterprise
 Ultimate*
 System Requirements:
1GHz processor, 1GB
RAM for 32-bit 2GB for
64-bit, 20 GB disk space
Features
 Snap
 Peek
 Shake
 Live Taskbar Previews
 HomeGroup
 Windows Search
 Jump Lists
 Libraries
 Desktop slide show

9. SNAP

10. PEEK

11. LIVE TASKBAR PREVIEWS

12. JUMP LISTS

13. LIBRARIES

14. HOMEGROUPS

15. WINDOWS 8
 Released October 26,
2012
 4 Editions:
 Windows 8
 Windows 8 Pro
 Windows 8 Enterprise
 Windows RT
 System Requirements:
1GHz processor, 1GB
RAM for 32-bit 2GB for
64-bit, 20 GB disk space
Features
 Metro design (tiles)
 Charms
 Lock screen
 Native USB 3.0 support
 Microsoft account
integration
 Windows Store
 Built-In Antivirus
 Search Function
 Windows To Go

17. WINDOWS 10
 Released July 29, 2015
 4 Editions:
 Home
 Professional
 Enterprise
 Education
 Windows 10 Mobile
 Free Upgrade
(Win7&8.1)
 System Requirements:
Same as Windows 8
Features
 Start Menu
 Cortana
 Microsoft Edge
 All-in-One Store
 Virtual Desktops
 Action Center
 Continuum