[ale] Parallel & serial port cards?

[Sam Rakowski]

Somewhat related, I've always wondered (it hasn't been an issue for me *yet*) is whether those USB->RS232 adapters actually swing +/- 12V or they just stick to TTL levels or similar. 

Also, are there actual USB->parallel port adapters that truly provide a 'normal' parallel port, with each pin able to be controlled like GPIO pins? I'd like to make another one of those cheap 'n' dirty R-ladder "DACs" to enjoy the hi-fi output of the PC speaker for nostalgia's sake. 
Sent via BlackBerry

-----Original Message-----
From: Boris Borisov via Ale <ale at ale.org>
Sender: "Ale" <ale-bounces at ale.org>Date: Sun, 15 Nov 2020 14:54:18 
To: Phil Turmel<philip at turmel.org>; Atlanta Linux Enthusiasts<ale at ale.org>
Reply-To: Boris Borisov <bugyatl at gmail.com>,
 Atlanta Linux Enthusiasts <ale at ale.org>
Subject: Re: [ale] Parallel & serial port cards?

_______________________________________________
Ale mailing list
Ale at ale.org
https://mail.ale.org/mailman/listinfo/ale
See JOBS, ANNOUNCE and SCHOOLS lists at
http://mail.ale.org/mailman/listinfo