Post AWaCQJw64VCorFETTc by ThatWouldBeTelling@shitposter.club
 (DIR) More posts by ThatWouldBeTelling@shitposter.club
 (DIR) Post #AWa0bFkwkmgxd6So3U by Luisa_Donato@hachyderm.io
       2023-06-08T21:19:28Z
       
       0 likes, 4 repeats
       
       How old were you when you found out that /usr stands for Unix System Resources and not for user?
       
 (DIR) Post #AWa0bGQmFG9Viq2DFw by killyourfm@layer8.space
       2023-06-11T11:06:08Z
       
       0 likes, 1 repeats
       
       @Luisa_Donato ... I was today years old...
       
 (DIR) Post #AWa2HaevWkdwZkOqIK by justinz@social.opendesktop.org
       2023-06-11T11:25:09Z
       
       0 likes, 0 repeats
       
       @killyourfm @Luisa_Donato as was I.
       
 (DIR) Post #AWa4CGZKziAQjANH84 by Mehrad@fosstodon.org
       2023-06-11T10:55:52Z
       
       0 likes, 1 repeats
       
       @Luisa_Donato as old as I was few seconds ago while I was reading your toot!
       
 (DIR) Post #AWa4DfXvcBjYTzNsVk by shakil_tcs@mstdn.starnix.network
       2023-06-11T11:46:54Z
       
       0 likes, 0 repeats
       
       @Luisa_Donato 28 years old now
       
 (DIR) Post #AWa6RvnwADs6rwnhYW by MrClon@lor.sh
       2023-06-11T12:11:52Z
       
       0 likes, 0 repeats
       
       @Luisa_Donato 32
       
 (DIR) Post #AWaAI7zaOW4padpX1c by tbs@gardenstate.social
       2023-06-11T12:54:43Z
       
       0 likes, 0 repeats
       
       @killyourfm @Luisa_Donato Same here 😂
       
 (DIR) Post #AWaCQJw64VCorFETTc by ThatWouldBeTelling@shitposter.club
       2023-06-11T13:18:49.839689Z
       
       0 likes, 0 repeats
       
       @shakil_tcs @Luisa_Donato Been using UNIX(TM) since the mid-1970s and I too am “today years old” and over twice as many as your’s….
       
 (DIR) Post #AWaJLYF29kjpSMlMfI by shakil_tcs@mstdn.starnix.network
       2023-06-11T14:36:23Z
       
       0 likes, 0 repeats
       
       @ThatWouldBeTelling @Luisa_Donato Wow!!And you didn't know as well?
       
 (DIR) Post #AWaKBwUFG2oJi6rNJI by torpedowiec@pol.social
       2023-06-11T14:45:47Z
       
       0 likes, 0 repeats
       
       @Luisa_Donato I was today days old.
       
 (DIR) Post #AWaRYvWhh4kZ4UuuFU by ThatWouldBeTelling@shitposter.club
       2023-06-11T16:08:27.897701Z
       
       0 likes, 0 repeats
       
       @shakil_tcs @Luisa_Donato Not at all.My memory of the legend of /usr is incorrect based on a couple of Dennis Richie 1972 notes files retrieved from DECtape in the 1990s (https://www.bell-labs.com/usr/dmr/www/notes.html) I found through Wikipedia.If you read it, note the idea of special files was revolutionary and wonderful back then and into the 1980s.  Somewhat like the PDP-11 having no I/O instructions, you just read and wrote to memory, thus the reserved 8 KiB in the first model.The creation of /usr is way back in time, when UNIX was still written in assembler (I think; a B compiler is mentioned) and was still running on the first PDP-11 model, later named the 11/20.One system at Bell Labs had a DEC supplied extra memory unit the latter only sold about thirty copies of.  Otherwise your total memory budget for all programs running at the same time would be 56 KiB, but 12 or 24 KiB was the minimum.He says their main disk then was a very fast fixed head RF drive with a 512 KiB capacity, and /usr was just user directories on a slow moving head RK, likely RK05 with 2.5 MiB, or a RP 20 MiB drive.  Note when he mentions file linking that’s hard links, multiple normal directory entries pointing to one file vs. later soft links.Of course sooner or later the less used binaries would have spilled over to a moving head drives, and that sure appears to have been to /usr/bin.A capitalized “Unix System Resources” is entirely wrong in style for the era, plus it should be “UNIX.”  So I’m now really doubting this claim, except as a bacronym, perhaps after Western Electric started contributing, initially to make it more useful internally for AT&T outside of the research groupWhich soon got a much more powerful PDP-11/45.  The 11/45 had a split instructions and data feature, allowing 64 KiB of the former, and due to the paging system 56 KiB of data and 8 KiB of stack.  Have not been able to find out any of these sorts of details about the 11/20 extra memory unit, the notes imply that came later.So they might not have made a big deal about /usr, and I don’t remember reading a different meaning for /usr in anything including their papers in the Bell Systems Technical Journal 1978 special UNIX edition.  Think I would have noticed since usr for user seems so obvious and UNIX style like tmp for temp.That was the style because all types of memory were precious, and for a long time they used Teletype Model 33 terminals with a speed as low as 110 baud, and pressing the keys required a lot of force.So there was an extreme premium on keeping everything as concise as possible.  Why the first “ed” editor had one error message, ‘?’ but what it could do was simple enough that sufficed.All of the above is before my time, which started more like middle-late 1970s and with V6, and ed being my first text editor.
       
 (DIR) Post #AWaurpvL7dU8V0LBp2 by TheMuso@mastodon.coffee
       2023-06-11T21:36:38Z
       
       0 likes, 0 repeats
       
       @Luisa_Donato @killyourfm me too.
       
 (DIR) Post #AWb1QXnl5kKK9cjBrc by Revertron@zhub.link
       2023-06-11T22:50:16Z
       
       0 likes, 0 repeats
       
       @MrClon @Luisa_Donato 43