What sort of computer do I need to set up a public display?

John helps run a small museum, and they need a screen to show what’s on display upstairs. What are the options?I help run a small museum in a historic building, and it’s hard for anyone with mobility issues to access an upper floor. To comply with accreditation requirements, we want some way to show what we have on display upstairs, using photos of exhibits and a short video.On a recent visiting to a National Trust property, I saw a tablet in use for this purpose. If we do this, whic