Adobe Ad: iMac Silhouette, but very much not an iMac.
The profile of the thin monitor, thin keyboard iMac is ubiquitous enough that this image looks almost like a deliberately non-Apple computer. As if someone decided to retro-fit an LCD screen to a 1980s beige-box motif, and add oversized keyboard to match. Why showcase your product on something ugly, when you can showcase it on something far less clunky looking? Look to any number of images of software running on laptops, with the laptop being a Macbook Pro w/o Apple logo.