operating-system

Microsoft Windows 7 logo

1920 × 1080

Windows 7 desktop background

1920 × 1200

Debian logo with slogan

1680 × 1050

FreeBSD logo on black

1280 × 1024

Tux the Linux penguin

1365 × 1024

Windows Vista default wallpaper

1280 × 960

Windows Vista startup screen

1280 × 800

Windows Vista default wallpaper

800 × 600

Windows Vista default wallpaper

1024 × 768

Windows Vista logo on blue background

1280 × 800

Windows 7 default wallpaper

1920 × 1200

Linux logo with tagline

1680 × 1050

Ubuntu logo on blue background

1920 × 1200

Ubuntu logo on purple background

1024 × 640

Ubuntu logo on dark background

1600 × 1200

Ubuntu startup screen

1680 × 1050

Linux operating system logo

1280 × 1024

Mandrake Linux logo

1024 × 768

Linux logo with Tux penguin

1024 × 768

Linux free software promotion

800 × 600

Windows XP boot screen

1024 × 768

Windows XP logo on blue background

1024 × 768

Windows XP logo on Earth

1024 × 768

Windows XP Silver logo

1024 × 768

Windows XP Silver logo

1024 × 768

Windows XP desktop background

1024 × 768

Windows XP startup screen

1024 × 768

Windows XP logo on blue

1024 × 768

Windows XP Professional desktop

1024 × 768

Windows XP desktop background

1024 × 768

Windows XP Professional NeoWin Edition

1024 × 768

Windows XP startup screen

1024 × 768

Windows 7 desktop background

1680 × 1050

Ubuntu logo on orange background

1920 × 1440

Linux logo on dark background

1920 × 1200

Windows 7 Ultimate logo

1920 × 1080