Quote:
Originally Posted by fjtorres
One reason so many of us like ereaders is because they are literally portable libraries.
It can be amusing to see what attempts to create such a thing looked like without the benefit of modern technologies.
In more recent times, a portable library could be achieved through microfiche technology:
http://worldmicrographics.com/handhe...fiche-readers/
http://worldmicrographics.com/portable-readers/
https://en.m.wikipedia.org/wiki/Microform
In fact, in the SF world, quite a few stories featured portable "ebook" readers that were projectors or goggles that used photographic film spools of text. It was the "obvious" evolution in an age without PCs and where microfiche archives were ubiquitous in the science and engineering world.
It was a very different time where Engineers often married their computers. 
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Microfiche was not really portable. The film yes, but the readers of the film, nope. So if you wanted to read the microfiche, you'd have to tote around the reader and have access to a power outlet.
As for SF, one of the best examples was Star Trek TNG with the PADD.