What attributes of "computer" are you looking for? The Remarkable 2 is definitely a "computer", but lacks many computer attributes, so it may not be what you're

What attributes of "computer" are you looking for? The Remarkable 2 is definitely a "computer", but lacks many computer attributes, so it may not be what you're looking for, so it really depends on what you're looking for. It meets the singular criteria of being incapable of running a modern web browser while having aspects of being a digital device. https://remarkable.com/ https://remarkable.com/