Tuesday, August 22, 2017

Most modern laptops, tablets, phones and storage now seem immune to magnetic disturbance


I’ve written on this blog before (July 28) that individuals and small businesses should consider making optical backups (CD’s) as well as Cloud and regular disk copies, but I may have “spake” too soon (even in a message to Webroot).  It looks like modern flash drives (which are now in the last laptops instead of ordinary harddrives) have very little vulnerability to magnetism.  Here’s the article by Simon Hill on Digital Trends.  This may be relevant to the debate on the damage that can be done by enemy electronmagnetic pulse (EMP).

I’ve wondered if living very close to electric utility transmission towers could affect electronics (because of induced magnetic fields) but it does not appear so.

But users really should buy only the Single Layer Cell drives, which are the fastest and the most expensive, but you get what you pay for here  (Datarecovery article).  They last much longer.  It’s like diamond needles vs/ Sapphire playing vinyl.
  
Companies and even homes should pay attention to the possibility that environmental hazards could affect defibrillators or life-saving equipment, or in some cases people with pacemakers (NIH).



Update: September 3

I've watched a video that does confirm the idea that the E1 stage of an electromagnetic pulse from a nuclear explosion could affect solid state electronics (as in  car or modern phone or computer) even though ordinary magnets do not.  I will have to check on this further (and talk to Geek Squad).  This is a developing story.  The E3 phase (which also happens with solar storms) will not normally harm home electronics. 

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