Quote Originally Posted by vwestlife View Post
The aftermarket monochrome cards without a parallel port were probably intended for clone systems which already had a parallel port built into the motherboard.
More like for those with a "multi I/O" card.
Such cards (LPT+GAME+COM+FDC+RTC) were ubiquitous in late XT clones, so some decided that second LPT wasn't necessary and they could save a few pennies.