What does the SysRq key do?

What does the SysRq key do? On my keyboard, the key the functions as the Print Screen key when the F-lock is on has "SysRq" below it (presumably to be used when F-lock is off). What is it and what does it do?
Asked by: Guest \| Views: 297

Total answers/comments: 1

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Guest [Entry]

"It is a programmable key which can be made to do a variety of things, depends.

I remember it having some uses on old ibm terminals, and some DOS programs used it for a form of soft resetting."