Collecting old video game consoles and vintage computers is a fun hobby, but keeping all that hardware working can quickly become an expensive, never-ending task — not to mention all the space you need just to store the gear. You might instead (wisely) opt to play your favorite games and software using emulators for your Mac.
In this guide to Mac emulation, I’ll walk you through the best apps you can use to accomplish the two most common scenarios: playing old video games, and taking Classic Mac OS for a test drive on a modern Mac. Plus, I’ll wrap up with the easiest way to virtualize modern operating systems like Windows and Linux on your Mac. (This handy virtualization software also works for old and obscure computer operating systems.)
Best of all, each of these Mac emulation methods is free and open source.

February 19, 1990: Adobe ships the first commercial version of its soon-to-be-iconic Photoshop photo editing software. The Photoshop launch, exclusively on the Macintosh, gives users powerful new tools for tweaking digital images.