It's been a while since I've featured an image related to computers. Well, here's one from a talented Austrian software engineer and photographer - Markus Petritz. From his courtesy the computer image is shared under CC0 license and optimized for use in projects such as - blog articles about tech, apps, social media, web design... or if you like maybe as phone and desktop background.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with many tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many phones)