[19:21] <diddledani> messin' https://usercontent.irccloud-cdn.com/file/GhD3nTdu/image.png
[19:22] <daftykins> o0
[19:23] <diddledani> IBM mainframe
[19:23] <diddledani> (emulated)
[19:24] <daftykins> o rly
[19:24] <diddledani> MVS is an OS from ancient times
[19:25] <diddledani> "First released in 1974"
[19:25] <diddledani> ref: https://en.wikipedia.org/wiki/MVS
[20:02]  * daftykins wields a chocolate orange
[21:11] <m0nkey_> diddledani: I remember using RFE on a real IBM Z series mainframe.
[21:45] <m0nkey_> diddledani: let me guess, you watched the L1Techs video with Tron Guy?
[21:45] <diddledani> maaaybe
[21:45] <diddledani> I fancied seeing what it was like
[21:46] <diddledani> it's confusing
[21:46] <zxmpi_> i keep looking at the pipdp and have to keep telling myself no :-) https://obsolescence.wixsite.com/obsolescence/pidp-11
[21:46] <m0nkey_> My first IT helpdesk job, I had to manage users on IBM Mainframe using RACF
[21:47] <zxmpi_> of course being from 1975 it's just modern rubbish :-P
[21:47] <m0nkey_> https://www.ibm.com/docs/en/zos-basic-skills?topic=zos-what-is-racf
[21:49] <m0nkey_> mainframes are a total different kind of animal
[21:49] <zxmpi_> if you're going to learn cobol properly... :-P
[21:50] <m0nkey_> 2hrs left of my on-call
[21:50] <m0nkey_> and I can sleep tonight
[21:50] <m0nkey_> Since Friday evening, I've had about 7, maybe 8 hours sleep.
[21:51] <diddledani> even DOS is weird before version 3 - that's about when it became sensible and recognisable by modern standards
[21:53] <zxmpi_> when i started dos 3.3 was the business. new AND shiny
[21:53] <zxmpi_> ms dos AND ibm dos. ibm dos had way better manuals
[21:56] <m0nkey_> earliest version of DOS I ever used was PC-DOS 2.0
[21:57] <m0nkey_> And that was running in the 90s when I worked at my local Safeway. The computers upstairs ran PC-DOS 2.0 and all the checkouts running it too.
[21:57] <m0nkey_> And these things were never powered off for the entire time they were in use.
[21:57] <diddledani> those handsets for shop-n-go ran DOS, too
[21:57] <zxmpi_> yeah i did see some really old shit. cp/m on a few dozen systems
[21:58] <diddledani> they were netbooted
[21:59] <zxmpi_> oooh cpm netbook. systems with 64k of ram. first machine would boot off 5mb hard drive. and then 1 by 1 the rest would take their turn to load os and apps from disk over network
[21:59] <zxmpi_> *netboot
[22:00] <zxmpi_> about 5-10 minutes for system to fully boot 6 machines
[22:02] <daftykins> m0nkey_: what's kept you up?
[22:02] <m0nkey_> daftykins: I'm on-call this weekend.
[22:03] <daftykins> surely you still sleep Saturday night!
[22:03] <m0nkey_> If I recall, the Safeway I worked at use old school 10Base5 vampire taps
[22:04] <m0nkey_> daftykins: I wish. gotta keep them source control systems maintained, even over the weekends.
[22:26] <zxmpi_> the batteries in my psion have died. they lasted 25+ weeks. i request a moment of silence for their valiant effort :-)
[22:29] <m0nkey_> thats getting close to nokia battery life territory 
[22:30] <zxmpi_> slightly more than 4 aa batteries a year, it's a real burden :-P
[22:30] <zxmpi_> gonna see if i can find lithium aa batteries to bung in next time :-D
[22:31] <m0nkey_> with lithium you should be able to overclock it lol