On Sunday, July 1, 2018, 11:09:34 PM PDT, juan <juan.g71@gmail.com>
   wrote:
   On Mon, 2 Jul 2018 00:22:03 -0400
   grarpamp <[1]grarpamp@gmail.com> wrote:
    "   as you know grarpamp (or maybe you dont know?) the size of
   bitcoins ledger is ~200 gbytes at the moment. "
   On Amazon, I see a 200 GB micro SD card being sold for $71.  A 256 GB
   micro SD card is sold for $120.  Rather spendy, but within the realm of
   possibility.
   About "a Gigabyte::  In my college days, 1978, we had a comedic,
   fictional dormitory organization called "TWePOE"  ("Third West Power
   Elite").   I, the only one with a functional personal computer on my
   hallway (my own homebrew "Bellyache I", a comedic take on the famous
   "ILLIAC 4), my room became the "GBDSC", short for "Gigabyte Data
   Storage Center", a subsidiary of the organization "MOIA", short for
   "Ministry of Information Abuse", whose ominous motto was, "We've got a
   file on YOU!"
   I chose "Gigabyte" because, at that time, it was such an inconceivably
   fantasticly large amount of data storage so as to be awe-inspiring.
   (An 8 inch SSSD floppy disk stored a grand 240 kilobytes of data, so it
   would have taken more than 4100 of them to house a full gigabyte.)
   Today, the idea that I could buy 1 million times the storage of one of
   those 240 kilobyte floppies, held in a wafer smaller than my
   pinky-fingernail, remains amazing to me.
           Jim Bell

References

   1. mailto:grarpamp@gmail.com