I somehow got recruited into setting up a small internet cafe in a third world country. I don't even know how it happened...
The plan is to have two laptops for internet access only, minimal specs required. Other than browsing the web, they should be able to change settings (and password) for the router. And they need to be able to be secured by a cable lock.
I picked up the teeny Asus x205 laptop last winter, and it seems that a Bay Trail processor and 2 GB of RAM are just fine for web browsing even with Windows as the OS. I picked up a handful of them at prices from $100-150, but now they are $190 or out of stock, it appears. And they don't have that slot to attach a locking cable.
Assuming a Chromebook can configure a router without the need of an extra device, Chromebooks are fair game.
What can you find that's cheap, simple, and physically securable?