The 7803 is a Z80 CPU card with 1k of static RAM expandable to 4k and provision for 8k of ROM as 4x 2716 EPROMs.
This board carries an MP4 monitor ROM which operates with a 7303 Keyboard & Display Card. That’s a nuisance because i don’t have a 7303. To operate this card, i will either need to find an off the shelf monitor and modify it, or i will need to emulate a 7303.
This card did not have a Z80 IC card, so i have added one.