Dual Serial / 80 Column Daughter Board: Parallel Interface

A daughter board for Charles Lane's Dual Serial / 80 Column card for the ADAM, adding a parallel port - the interface a printer of the period expects, and the one the ADAM's own printer does not use.

THIS IS A DAUGHTER BOARD, not a card in its own right: it attaches to the Dual Serial / 80 Column board rather than to the ADAM's expansion bus.

The parent project was developed in public on the AtariAge forum from 2019. Details specific to this daughter board are thin and want confirming against that thread or the board itself.