Demonstration of a DEC VT100 Terminal connected to IBM PC AT connected via COM2, with Debuggers attached.
Use the DOS command
CTTY COM2 to use the VT100 for console operations.
CTTY CON will return control to the PC.
[PCjs Machine "vt100"]
Waiting for machine "vt100" to load....
[PCjs Machine "ibm5170"]
Waiting for machine "ibm5170" to load....