TDS-series oscilloscopes
TDS series scopes
General information
These (at least TDS 744A) run vxWorks as an OS.
Internal service console port
This is an internal serial port that talks to a command interpreter (smalltalk ?) and gives access to a lot of powerful commands.
See these threads on the TEK forums:
https://forum.tek.com/viewtopic.php?t=138100
https://forum.tek.com/viewtopic.php?f=568&t=138489&p=280292
https://forum.tek.com/viewtopic.php?f=568&t=137307