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TGIF folks!
Time for Trivia! https://discussions.virtualdr.com/
Both OLD and NEW computers have this.
No one ever uses it or really knows what it does. But yet we all have it on our computers!
What does that Sys Rq key on your keyboard do?
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Keep it simple!
SysRq key prints my screen. https://discussions.virtualdr.com/
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Please post back.
Thanks, Poppy.
There is no standard use for the key. The BIOS keyboard routines in INT 16 simply ignore it; therefore so do the DOS input routines in INT 21 as well as the keyboard routines in libraries supplied with high-level languages.
When you press or release a key, the keyboard triggers hardware line IRQ1, and the CPU calls INT 9. INT 9 reads the scan code from the keyboard and the shift states from the BIOS data area.
What happens next depends on whether your PC's BIOS supports an enhanced keyboard (101 or 102 keys). If so, INT 9 calls INT 15 AH=4F to translate the scan code. If the translated scan code is 54 hex (for the SysRq key) then INT 9 calls INT 15 AH=85 and doesn't put the keystroke into the keyboard buffer. The default handler of that function does nothing and simply returns. (If your PC has an older BIOS that doesn't support the extended keyboards, INT 15 AH=4F is not called. Early ATs have 84-key keyboards, so their BIOS calls INT 15 AH=85 but not 4F.
Thus your program is free to use SysRq for its own purposes, but at the cost of some programming. You could hook INT 9, but it's probably easier to hook INT 15 AH=85, which is called when SysRq is pressed or released.
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Keyboard error or no keyboard present
Press F1 to continue
Can be used with AS400 to access message ques. Really no use at present time. A feature that really never got off the ground.
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Seek Knowledge First and All Else Will Follow
Well it does a damn fine job at collecting dust, but it's a screen capture for me too. Got a sinking feeling that PCS is looking for something else though.
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I crash...therefore I am.
Poppy4, maxx, wrong, that is "ALT+SysRq" = Print Screen.
ceh383 uses Google as their search engine.
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Sean (Smurfy)
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Please remember that others may need to know the outcome of your problem so please keep us updated.
No, it would be Northern Light.
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Keyboard error or no keyboard present
Press F1 to continue
The original IBM AT had that key.
It was there for a reason. What did it do?
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Keep it simple!
https://discussions.virtualdr.com/ Still turned up the same page as google https://discussions.virtualdr.com/
Nice copy 'n' paste btw
C'mon guys, we're still at least a dozen behind the Mach2 show here...
I truly couldn't tell you what it means though.
Ya'll have fun I gotta go.
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Keyboard error or no keyboard present
Press F1 to continue
OK, will show my age a little:
System Request Key
A descendant of the old IBM mainframe computer terminal keyboard, it stands for “System Request” and was used to either reset the keyboard or change from one session to another. These days, “Print Screen” and
“SysRq” often share the same key.
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Murf
Break it! - We can Fix it!
Visit-Murf's Windows Garage
Currently under construction
SysRq
This key stands for 'System Requestt' and was used in the days of the IBM Mainframe, where computers took up buildings instead of just computer desks. It's purpose was to change sessions and/or reset the keyboard
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Sean (Smurfy)
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Please remember that others may need to know the outcome of your problem so please keep us updated.
Geez Murf, you thought you typed slow!!
Whew! I'm slow draw mgraw around here!
System Request (SysRq) key: A descendant of the old IBM mainframe computer terminal keyboard, it stands for “System Request” and was used to either reset the keyboard or change from one session to another. These days, “Print Screen” and “SysRq” often share the same key.
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Please post back.
Thanks, Poppy.