Re: finally.
Wonderful, a laptop minus its screen…
Yes, personal computers did once look like that, because screens were the expensive bit, and so they just used your television set.
Devices like the Intel NUC and Zotac ZBox are small enough to bolt to the back of a monitor and not be noticed. We've had one of the latter units bolted to the back of a monitor in our office reception area for a few years now and you could plug any keyboard you liked into it.