First of all computer stores still do exist, so if one is too lazy to get out of the armchair no wonder one does not find one.
Secondly immersive gaming still does exist - it is called a console running on a home theatre, just does as is described in the article.
Thirdly installable software still exists, it's called MobileApps. It may cause a corporate LSA an enormous headache though.
Fourth : I am writing this comment on a DELL Desktop from 2010 (which is tucked away under the desk though)
Fifthly : the helpdesk technician still drops in for Hardware related stuff you just simply can not fix by remote desk-topping.
Nothing should stop the author from having a BBS like close knit community on fb or G+, just lock the group down and that would be it.
So out of the 10 mementos, 6 do still exist at first glance.
What i do miss from the 80ies are well researched articles though. I really do.
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