Does someone know a readymade solution for this? (For Wordpress?)

Synchronized Sliders — Not exactly what I asked for but could achieve a similar UX
Here's a howto and it's demo. Note: What's synchronized here is an image-nr, image-text, image-container, but that could easily be i.e. 3 image-containers (on top on smaller screens, in one layout row on larger screens).
Slider which moves multiple slides per prev/next click
i.e. http://splidejs.com/#multiple-slides-example
Just set the amount of slides to move to be exactly your amount of photo sets (i.e. your 3 platforms Mac/Linux/Windows) and make sure to fill in blank/pseudo pictures for images which are inexistent (i.e. use case "Restart" missing for Linux).