Years ago, there was an initiative to build a sub-$100 PC that could be distributed in the Third World to lift up the most poor and remote areas of the world.
What ever happened to that?
“What ever happened to that?”
One Laptop per Child (olpc)
https://en.wikipedia.org/wiki/One_Laptop_per_Child
PC-on-a-stick
https://en.wikipedia.org/wiki/PC-on-a-stick
Comparison of single-board computers
https://en.wikipedia.org/wiki/Comparison_of_single-board_computers
Note: the Raspberry Pi ran into problems when it was discovered to be susceptible to malfunctions due to optical interference from certain type of light sources.