Apple OS X logo

1280 × 1024

Mac OS logo on black

1600 × 1000

Mac OS X logo

1024 × 768

Mac OS X logo

1024 × 768

Mac OS X logo with circuit board

1600 × 1200

Mac OS X logo on dark background

1600 × 1200

Apple Logo and Text — Black, Minimalist

1920 × 1200

Ubuntu Logo on Digital Background — Yellow

1920 × 1080

Ubuntu Logo on Digital Background — Orange

1280 × 800

Ubuntu Logo on Dark Background — Orange

2560 × 1600

Windows 8.1 Logo — Black, Minimalist

1920 × 1200

Ubuntu Logo on Dark Background — Gold

1600 × 900