Wine

Wine is a multiplatform reader that can run programs designed for Windows systems on other operating systems. Initially designed to allow the use of Win16 and Win32 applications on Linux systems, it's now also available for Android with similar functions.

The system replicates a desktop similar in appearance to a pre-XP version of Windows, although it's no more than a small frontend to manage the installed programs. It's designed to run on devices with Android x86, although it can also run on ARM architectures. That said, you'll need to use physical command input devices like a keyboard and mouse or an external virtual keyboard superimposed on the application to control it.

The compatibility list in Wine can be consulted from the official website, although in all cases it can run old programs and games. Whether it's an ancient version of Photoshop or the inimitable Quake 2, with a bit of patience and several attempts you can bring software from another time and platform onto Android terrain.