The I/O socket is interesting. It lists a 51.2KBps transfer rate on a machine with only 16KB of memory. Fast enough you could do some banked external memory s

The I/O socket is interesting. It lists a 51.2KBps transfer rate on a machine with only 16KB of memory. Fast enough you could do some banked external memory shenanigans assuming you were careful to not swap the banks too often.