Ubuntu Lucid Lynx boot screen

1536 × 864

Windows 7 startup screen

1024 × 768

Ubuntu Logo — Orange, Vibrant, Vector Art

1280 × 800

Ubuntu Logo on Dark Background — Black

1920 × 1080

Ubuntu logo on wood background

1280 × 960

Ubuntu logo on wood background

1280 × 960

Ubuntu logo with purple glow

1536 × 864

Tux the penguin mascot

1600 × 1000

Windows 7 startup screen

1024 × 768

Windows Vista startup screen

1680 × 1050

Windows XP Professional startup screen

1024 × 768

Windows XP startup screen

1024 × 768