operating-system

Windows 8 startup screen

2560 × 1600

Windows 8 logo on gradient

2560 × 1600

Windows 8 logo on green background

2560 × 1600

Windows 8 logo screen

2560 × 1600

Windows 8 logo screen

2560 × 1600

GNU Linux Gnome desktop

1280 × 1024

Tux the penguin mascot

2000 × 2386

Ubuntu logo with tagline

1366 × 768

Ubuntu 11.04 desktop background

1280 × 1024

Ubuntu 11.04 logo on purple background

1280 × 1024

Ubuntu 11.04 logo

1280 × 1024

Ubuntu 11.04 logo

1280 × 1024

Ubuntu 11.04 logo on green tiles

1280 × 1024

Arch Linux logo on textured background

2560 × 1600

Ubuntu 11.04 wallpaper

1280 × 1024

Debian logo on black background

1680 × 1050

Ubuntu 11.04 Natty Narwhal

2560 × 1600

Natty Narwhal logo

2560 × 1600

Microsoft Windows 3.1 startup screen

1680 × 1050

Debian logo with colorful glow

1680 × 1050

Ubuntu and Windows logo fusion

1920 × 1200

GNU/Linux Distribution Timeline

2020 × 7474

Linux kernel map diagram

2048 × 1536

Windows 7 logo on gradient background

1920 × 1200

Debian logo on white background

1680 × 1050

Ubuntu logo abstract design

1680 × 1050

Saw logo with Russian text

1920 × 1200

Ubuntu login screen

1280 × 800

Arch Linux logo on dark background

1920 × 1200

Windows XP startup screen

1280 × 1024

Kubuntu 10.10 logo

1600 × 1200

Ubuntu logo on dark background

1920 × 1200

Tux the penguin mascot

1024 × 768

Ubuntu logo sequence

1280 × 800

Windows 7 promotional wallpaper

1440 × 900

Debian logo on gray background

1680 × 1050