From: bruce2bowser@gmail.com   
      
   On Sunday, April 30, 2023 at 2:47:24 PM UTC-4, Ken Blake wrote in   
   alt.usage.english:   
   > On Sun, 30 Apr 2023 18:09:12 +0100, Sam Plusnet  wrote:    
   >    
   > >On 29-Apr-23 23:03, Peter Moylan wrote:    
   > >> On 30/04/23 02:48, bruce bowser wrote:    
   > >>    
   > >>> What is a kill switch? A kill switch in an IT context is a mechanism    
   > >>> used to shut down or disable a device or program.    
   > >>>    
   > >>> The purpose of a kill switch is usually to prevent theft of a machine    
   > >>> or data or shut down machinery in an emergency. The degree to which a    
   > >>> kill switch limits, alters or stops an action or activity depends on    
   > >>> the production, process or program it is intended to protect.    
   > >>>    
   > >>> --    
   > >>> https://www.techtarget.com/whatis/definition/kill-switch#:   
   :text=What%20is%20a%20kill,down%20machinery%20in%20an%20emergency.    
   > >>    
   > >> It's    
   > >>>    
   > >> the successor of the big red "emergency stop" button that can be    
   > >> found anywhere there is large moving machinery. It cuts the power to the    
   > >> whole area.    
   > >    
   > >Not just moving machinery, lots of electrical equipment have them.   
   > And data centers.   
      
   Why not for "mainframes, servers, routers, desktops, laptops and phones?   
       
   > >(On one machine I worked on, I think I counted at least 8 different    
   > >emergency stop buttons.)   
      
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