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On 26/09/2018 22.42, James Knott wrote:
On 09/26/2018 10:11 PM, Carlos E. R. wrote:
Some mainboards still have it.
On my momboard, which I bought a few years ago, the header is there but no connector on the back. That wouldn't be hard to make for someone who's technically inclined.
Yes, my board is like that. I grabbed an old connector from my old box of things and odds and just had to make it a bit longer.
BTW, I as I mentioned earlier, I'm rereading "The Cuckoo's Egg", by Clifford Stoll. There's one part there where he's getting a bunch of printers, to copy the attacker's traffic. I was sitting there thinking why not connect to serial ports and have the computer log the traffic, instead of wasting all that paper. Way back in the 80s, which is the period this book is written about, I was connecting serial ports to data circuits for monitoring purposes. Easy to do. All you need is serial ports and those mini-computers generally had several. We even had dedicated test sets to capture data and display on 2 lines at a time, one for each direction, for full duplex connections.
I saw serial printers used for monitoring big machines. -- Cheers / Saludos, Carlos E. R. (from openSUSE 15.0 (Legolas))