Entering URAID

[pamoroso]

The manual of Medley for the Sun indicates two keychords for entering URAID:

• Shift-Ctrl-Delete
• Shift-Ctrl-Next

The second one works on my Linux box as Shift-LeftCtrl-RightCtrl but not the first.

The Delete key of the first keychord supposedly corresponds to Delete of the numeric keypad but it does nothing on my box, and neither do the ordinary Delete and Backspace. Is the first keychord still mapped?

By the way, what does URAID stand for?

[pamoroso]

Found: the first keychord maps to Shift-Ctrl-^H, that is, Shift-LeftCtrl-RightCtrl-H.

[nbriggs]

It's unclear what the "U" in "URAID" in Maiko was intended to mean - could be "Unix" though. RAID was the debugger (a reference to the brand-name fly spray). TeleRAID was the remote debugger - when a D-machine went to the debugger it could listen for debug packets on the ethernet and let you peek/poke memory so that you could either figure out what happened or attempt to recover some state.

[rmkaplan]

I think it was Unix. RAID was the original debugger on the Alto. Or was it Swat?

…

On Jul 31, 2026, at 9:25 AM, Nick Briggs ***@***.***> wrote: It's unclear what the "U" in "URAID" in Maiko was intended to mean - could be "Unix" though. RAID was the debugger (a reference to the brand-name fly spray). TeleRAID was the remote debugger - when a D-machine went to the debugger it could listen for debug packets on the ethernet and let you peek/poke memory so that you could either figure out what happened or attempt to recover some state. — Reply to this email directly, view it on GitHub <#2712?email_source=notifications&email_token=AQSTUJO3MA4GNGFZPNR3QVD5HTB6RA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNZYGU2TSMZTUZZGKYLTN5XKU43VMJZWG4TJMJSWJJLFOZSW45FMMZXW65DFOJPWG3DJMNVQ#discussioncomment-17855933>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQSTUJJMBB4J72CVNGD5XOL5HTB6RAVCNFSNUABIKJSXA33TNF2G64TZHMZDQMJVGE4TSNRUHNCGS43DOVZXG2LPNY5TCMBVGMYTGNBQUF3AE>. You are receiving this because you are subscribed to this thread.

[nbriggs]

It was Swat on the Alto -- http://www.righto.com/2016/10/restoring-ycs-xerox-alto-day-9-tracing.html

[MattHeffron]

That name RAID probably follows from the debugger for the DEC-10/20, named DDT (Dynamic Debugging Technique); which, itself, was named as a pun on the insecticide of the same name.