On 7/31/25 9:39 AM, John Hasler wrote:
Minicomputers often did not have physical consoles: everything was done via serial ports. When there were multiple serial ports IIRC one of them was identified as the console.
And IBM Midrange Systems, from the S/34 on, used EBCDIC-based terminals, using the 5250 data stream and Twinax cabling (earlier Midrange boxes used other terminal protocols).
Many years ago, I worked with Commodore Amigas. They had a number of facilities for using a terminal connected to the serial port for debugging purposes.
FWIW