Hey Hey 16k

Hey Hey 16k is an animation by Rob Manuel and MJ Hibbett about old computers when they were new. You can emulate old machines on OS X with AdvanceMESS, using system ROMs as needed and (for example) files of Spectrum tapes.

Fuse is easier to set up though (it's available as a disk image, ready to run), if you only want to play Spectrum games.