I'm all for designing things right, but I think it's not important to get caught up in the naming.
Display. Storage. Battery. Some way to charge it when you're nowhere near reliable electricity. Maybe a keyboard. Maybe the ability to communicate with other ones in a mesh. Maybe they can hook up to the internet if it's available.
And then lots and lots of great content pre-loaded.
For instance, ka-lite, the downloadable Khan Academy:
"The 4781 videos that are available currently have a size of 57.1 Gigabyte."
I'm all for designing things right, but I think it's not important to get caught up in the naming.
Display. Storage. Battery. Some way to charge it when you're nowhere near reliable electricity. Maybe a keyboard. Maybe the ability to communicate with other ones in a mesh. Maybe they can hook up to the internet if it's available.
And then lots and lots of great content pre-loaded.
For instance, ka-lite, the downloadable Khan Academy:
"The 4781 videos that are available currently have a size of 57.1 Gigabyte."
That's really not that big, any more.