OISC is something you sometimes get to build in EE labs, usually as the last project for that class. It's something that you can put together out of 7400s and,

OISC is something you sometimes get to build in EE labs, usually as the last project for that class. It's something that you can put together out of 7400s and, at least in our case, an eeprom for a lookup table. It's a fun thing to do and I recommend it.