Its consumer equivalent was Baby Mac (also written BabyMac and simply labeled Macintosh on prototypes).

[4][7] Without the knowledge of Jobs, a project codenamed "Milwaukee" was in development concurrently with the Big Mac and ultimately succeeded it to become the Macintosh II, causing designer Rich Page to leave Apple for NeXT.

[1][2] Esslinger described Baby Mac as his "best design never to be produced",[8] while Jean-Louis Gassée considered it to be a toy.

[4][5] Big Mac was conceived as a 3M computer, with at least 1 megabyte of memory, a 1 megapixel display, and 1 million instructions per second.

Big Mac was intended to have a UNIX-based operating system while maintaining compatibility with existing Macintosh software and using the same user interface.