Delta update method.... I know mainframe operating systems use delta updates. I wonder what will happen if you re-install an mainframe
operating system ... would you need to apply YEARS of delta updates afterwards??
On 06/15/2026 6:52 AM, Mr. Man-wai Chang wrote:
Delta update method.... I know mainframe operating systems use delta
updates. I wonder what will happen if you re-install an mainframe
operating system ... would you need to apply YEARS of delta updates
afterwards??
No.
On 6/15/2026 8:58 PM, ....winston wrote:
On 06/15/2026 6:52 AM, Mr. Man-wai Chang wrote:
Delta update method.... I know mainframe operating systems use delta
updates. I wonder what will happen if you re-install an mainframe
operating system ... would you need to apply YEARS of delta updates
afterwards??
No.
I have never ever operated a mainframe computer. I supposed you know what you said. :)
If you've ever been in a mainframe computer room, one
thing you remember, is how cold it is in there.
On 6/15/2026 8:58 PM, ....winston wrote:
On 06/15/2026 6:52 AM, Mr. Man-wai Chang wrote:
Delta update method.... I know mainframe operating systems use delta
updates. I wonder what will happen if you re-install an mainframe
operating system ... would you need to apply YEARS of delta updates
afterwards??
No.
I have never ever operated a mainframe computer. I supposed you know
what you said. :)
In an Enterprise environment, when using Delta Updates...the initial
install is almost always a recent version/build image created and
......
to apply "Years of delta updates" would be inefficient(and reasonably
stupid or a extremely good reason to find another more qualified person
to manage and oversee the entire process)
- Therefore, the 'No' answer.
If you've ever been in a mainframe computer room, one
thing you remember, is how cold it is in there. You will
forget all your delta updates, once you are freezing
your ass off in there.
On 6/16/2026 2:07 AM, Paul wrote:
If you've ever been in a mainframe computer room, one
thing you remember, is how cold it is in there. You will
forget all your delta updates, once you are freezing
your ass off in there.
Operators usually wear suits, like Men In Black. Not sure about (sexy?) female operators. And outside contractors.
I did enter and exit a mainframe computer room when doing industrial placement in
IBM World Trade (Asia) Corp. in Hong Kong. It's not that "freezing your ass off". :)
The CDC machine, it might have been 57F with a breeze in there
(the breeze is the part that kills you), and the woman operator
wearing the thick angora sweater, she was constantly hugging herself
for warmth. She just hated working in those conditions, but that wasn't
a union shop. She never ever smiled. That's why
my nick for her was "The Ice Queen".
On Tue, 6/16/2026 12:40 AM, Mr. Man-wai Chang wrote:
On 6/16/2026 2:07 AM, Paul wrote:
If you've ever been in a mainframe computer room, one
thing you remember, is how cold it is in there. You will
forget all your delta updates, once you are freezing
your ass off in there.
Operators usually wear suits, like Men In Black. Not sure about (sexy?) female operators. And outside contractors.
I did enter and exit a mainframe computer room when doing industrial placement in
IBM World Trade (Asia) Corp. in Hong Kong. It's not that "freezing your ass off". :)
Thermal practices vary by installation. Some of our mainframes
were installed in building spaces with weird dimensions
(long and slim). Those style of facilities did not use
the "killer" chiller plant. You could dress normally there.
The CDC machine, it might have been 57F with a breeze in there
(the breeze is the part that kills you), and the woman operator
wearing the thick angora sweater, she was constantly hugging herself
for warmth. She just hated working in those conditions, but that wasn't
a union shop. She never ever smiled. That's why
my nick for her was "The Ice Queen".
And nobody wore suits in our mainframe facilities. Same goes
for the university mainframe. Attire was casual. You would
wear something heavy enough, for the conditions.
On 2026-06-16 13:44, Paul wrote:
The CDC machine, it might have been 57F with a breeze in there
(the breeze is the part that kills you), and the woman operator
wearing the thick angora sweater, she was constantly hugging herself
for warmth. She just hated working in those conditions, but that wasn't
a union shop. She never ever smiled. That's why
my nick for her was "The Ice Queen".
It is worse if you sit down.
I'm told there are worse places: abattoirs. I knew a cleaning girl that preferred cleaning than working there. She got sick.
On 2026-06-16 13:44, Paul wrote:
And nobody wore suits in our mainframe facilities. Same goes
for the university mainframe. Attire was casual. You would
wear something heavy enough, for the conditions.
It is worse if you sit down.
I'm told there are worse places: abattoirs. I knew a cleaning girl that preferred cleaning than working there. She got sick.
On 06/16/2026 9:19 AM, Carlos E. R. wrote:
On 2026-06-16 13:44, Paul wrote:
And nobody wore suits in our mainframe facilities. Same goes
for the university mainframe. Attire was casual. You would
wear something heavy enough, for the conditions.
A place unlikely for any Windows 11 or 10 devices at 7C/44F or lower.
On 6/16/2026 9:19 PM, Carlos E. R. wrote:
On 2026-06-16 13:44, Paul wrote:
The CDC machine, it might have been 57F with a breeze in there
(the breeze is the part that kills you), and the woman operator
wearing the thick angora sweater, she was constantly hugging herself
for warmth. She just hated working in those conditions, but that wasn't
a union shop. She never ever smiled. That's why
my nick for her was "The Ice Queen".
It is worse if you sit down.
I'm told there are worse places: abattoirs. I knew a cleaning girl that
preferred cleaning than working there. She got sick.
Better wear a full face-mask and a disposable coat. Abattoirs are as dangerous as mortuary in hospitals. The floor is always dirty.
On 06/16/2026 9:19 AM, Carlos E. R. wrote:
On 2026-06-16 13:44, Paul wrote:
And nobody wore suits in our mainframe facilities. Same goes
for the university mainframe. Attire was casual. You would
wear something heavy enough, for the conditions.
It is worse if you sit down.
I'm told there are worse places: abattoirs. I knew a cleaning girl
that preferred cleaning than working there. She got sick.
A place unlikely for any Windows 11 or 10 devices at 7C/44F or lower.
On 6/16/2026 10:26 PM, ....winston wrote:
On 06/16/2026 9:19 AM, Carlos E. R. wrote:
On 2026-06-16 13:44, Paul wrote:
And nobody wore suits in our mainframe facilities. Same goes
for the university mainframe. Attire was casual. You would
wear something heavy enough, for the conditions.
A place unlikely for any Windows 11 or 10 devices at 7C/44F or lower.
No.
3270 terminal emulation is available since MS-DOS days. You needed a
3270 adapter to do it, and relevant software of course. Nowadays, I
believe IBM mainframes can bridge with TCP/IP and run 3270 terminal emulation on top of it. The same should go to IBM AS/400.
On 06/16/2026 11:03 AM, Mr. Man-wai Chang wrote:Sorry... sorry... I failed to comprehend "7C/44F" as temperature
On 6/16/2026 10:26 PM, ....winston wrote:
A place unlikely for any Windows 11 or 10 devices at 7C/44F or lower.
No.
You missed the point or didn't understand the concept.
Few Windows 11 or 10 devices are present on mainframe servers(an
unlikely place for Windows 11/10 devices). Windows 11/10 devices are
external to mainframe environment and acting as endpoint for mainframe management.
Enterprise admins are not jumping through hoops to use 3270 emulation.
Those 3270 emulators are becoming dinosaurs, less secure in protecting business or risk. For some time, the two-tier web-based ....
On 6/17/2026 8:05 AM, ....winston wrote:
Few Windows 11 or 10 devices are present on mainframe servers(an
unlikely place for Windows 11/10 devices). Windows 11/10 devices are
external to mainframe environment and acting as endpoint for mainframe
management.
Why not place some Windows machines inside a computer room if they can
run terminal emulation? I think operator consoles of IBM mainframes are still 3270????
Enterprise admins are not jumping through hoops to use 3270 emulation.
Which is strange!! There is nothing wrong about 3270, VT-100 and ANSI.
To secure these old protocols, just box or wrap them with a security shield???
BTW, IBM mainframes (and AS/400 possibly) have communication controllers with security built-in.
Those 3270 emulators are becoming dinosaurs, less secure in protecting
business or risk.ÿ For some time, the two-tier web-based ....
What made modern LAN and Wifi adapters/USB dongles more secured?ÿ :)
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