Talk:Unit Control Block

Q-type address constants?
The phrase "16-bit Q-type (i.e. relocatable) addresses" is doubly wrong; first, the I/O device lookup table did not have Q-type address constants and, second, Q is used for offsets within an external dummy. Perhaps the editor meant Y-type, which is a 15-bit relocatable constant.

Shmuel (Seymour J.) Metz Username:Chatul (talk) 17:45, 9 March 2018 (UTC)

Priority queueing
Priority queuing of I/O did not come in with the Workload Manager (WLM); in fact, priority queuing of I/O existed in OS/360 Release 15/16 and ordered queuing existed by Release 21. Shmuel (Seymour J.) Metz Username:Chatul (talk) 19:46, 6 May 2021 (UTC)

Queuing by channel only applies to S/370 and ECPS:VSE modes
Operating systems running in z/Architecture mode do not queue I/O by channel, nor do systems running in XA or ESA mode, only systems that run in S/370 or ECPS:VSE mode and use the SIO instruction. All newer systems use the SSCH instruction and the channel subsystem handles the assignment and queuing of channels. Shmuel (Seymour J.) Metz Username:Chatul (talk) 20:14, 6 May 2021 (UTC)

Cite web is for online citations for which there's no other appropriate template.
To quote the documentation for cite web: "This Citation Style 1 template is used to create citations for web sources that are not characterized by another CS1 template."

Cite book characterizes books, so books are not "web sources that are not characterized by another CS1 template", and there is no reason to use cite web for them. Guy Harris (talk) 22:09, 24 January 2023 (UTC)
 * user:Voidxor also removed section, section-url and bitsavers.org; you restored section and section-url to one citation but not to the other. Is there a reason for that, and for not reinstating bitsavers.org? --Shmuel (Seymour J.) Metz Username:Chatul (talk) 13:38, 25 January 2023 (UTC)
 * Not noticing that they'd been removed from the other citation.
 * Not seeing a reason why it's significant that the manuals from IBM happens to have been scanned into PDFs and hosted at the Computer History Museum's Bitsavers collection. Guy Harris (talk) 19:41, 25 January 2023 (UTC):
 * I appreciate you for at least using cite web cite book over the long-since-merged cite manual. Also, thank you for providing your reasoning rather than stubbornly reverting without collaborating or teaching. Your quote from the cite-web doc is something that's probably been staring me in the face, yet I've somehow missed after my 2015 conversation with (since banned, I see) here. Some things leave me scratching my head on Wikipedia, but I always appreciate consistency. —   void  xor  20:44, 26 January 2023 (UTC)
 * Presumably you meant "for at least using cite book". I usually try to give explanations in edit comments, possibly with talk page comments, for non-obvious changes. Guy Harris (talk) 21:06, 26 January 2023 (UTC)
 * That I did, thanks! —  void  xor  22:41, 27 January 2023 (UTC)
 * Had the change been limited to replacing cite manual with cite book and removing via, it would not have been objectionable. However, changing it to cite web and removing location parameters was another matter. --Shmuel (Seymour J.) Metz Username:Chatul (talk) 14:35, 29 January 2023 (UTC)
 * Yes, and as I have already admitted (above), that was due to a misunderstanding on my part after having an admin tell me that should take priority for online book and news sources. Why rehash this? Your continued use of  instead of  is another matter; please don't conflate. You could've just as easily used  and pointed me to the correct guideline, but it took Guy Harris to do that. —   void  xor  17:37, 30 January 2023 (UTC)

Secondary sources?
Is the Network and Systems Professionals Association (NASPA) NaSPA Technical Support Magazine considered to be a WP:RS? I'm thinking in particular of Keeping up With the Unit Control Block: Part II by Sam Golob. Shmuel (Seymour J.) Metz Username:Chatul (talk) 14:18, 25 January 2023 (UTC)