The Emma 02 emulates the RCA 1802 processor and its boards.
Supported computers and early gaming systems are:
| Cidelsa | ETI 660 | RCA Studio II |
| COMX-35 | Membership Card | Telmac 1800 |
| Cosmac Elf | Netronics Elf II | Telmac 2000 |
| Cosmac Elf 2000 | Oscom Nano | Telmac TMC-600 |
| Cosmac VIP | Pecom 64 | Victory MPT-02 |
| Cosmac VIP II | Quest Super Elf | Visicom COM-100 |
| Cosmicos | RCA Studio II |